Earth’s Core Should Be Impossible. A New State of Matter Explains It.
Credibility score: 87/100 — Highly Credible. This video is highly credible with well-supported claims.
BSmeter analyzed "Earth’s Core Should Be Impossible. A New State of Matter Explains It." and rated it 87/100 for credibility (a BS score of 13/100 — highly credible), on 2026-04-21. Its weakest claim — "Liking and commenting boosts video sharing." — scored 50/100 and was flagged as just vibes. 23 claims were checked against the video transcript. Scores are produced by BSmeter's AI analysis of the transcript, not independent human verification.
Of 23 claims analyzed: 0 scored under 40, 1 between 40 and 69, and 22 at 70 or above.
Claims analyzed
Earth's inner core is both solid and liquid-like. — Solid (85/100)
At 0:00
Dropping the solid-liquid paradox like it's casual trivia — and it's actually spot on ✅😤
Why this score: Core discovery timeline is accurate. Key points:
- Liquid outer core confirmed by seismology in 1936 (Lehmann)
- Solid inner core discovered 1936, boundary ~5100 km depth
- Bizarre properties: inner core shows anisotropy and super-rotation, appearing 'liquid-like' in seismic wave behavior despite being solid
- Punchline 'yes' cleverly captures the established complexity without oversimplifying
Original quote: “First we discovered Earth's liquid core. Then we discovered a solid core within that liquid core. Then we discovered that the solid core has bizarre properties that are more liquid like. So is the inner core solid or liquid? The answer is yes.”
Liking and commenting boosts video sharing. — Just Vibes (50/100)
At 0:22
Classic YouTube 'please engage' pivot — we all know the algorithm game 💀📈
Why this score: Standard creator engagement request. This isn't a factual claim requiring verification:
- YouTube algorithm demonstrably favors engagement metrics (likes, comments, watch time)
- Creators universally make this request because it empirically works
- Transparent about incentives rather than pretending objectivity
Original quote: “Before we get started, a couple quick announcements. First, we have some new data: liking and commenting really does help get episodes shared. And we've also learned that”
Mohorovičić discovered crust-mantle boundary in 1909 using P-waves — Verified (95/100)
At 2:30
Nailed the Moho discovery — dude really did spot those P-wave shortcuts in 1909 ✅😤
Why this score: Spot-on historical fact. Mohorovičić's 1909 observation of P-wave velocity increase correctly identified the crust-mantle boundary (Moho).
- Matches seismic records: sudden velocity jump due to denser mantle.
- Video's timeline comparison to relativity is flair, but core claim holds.
Original quote: “it wasn't until 1909, after Einstein, special relativity, that anyone realized that seismic waves could teach us about Earth's structure. It was Andrija Mohorovičić that noticed that some of the P waves that's primary or pressure waves,”
P-waves shortcut through denser mantle region — Verified (98/100)
At 3:00
That's exactly how the Moho works — denser rocks = faster waves. Solid science ✅
Why this score: Precisely accurate. Mohorovičić inferred Moho from P-waves taking 'shortcut' via higher-velocity mantle.
- Depth varies (5-70 km), but mechanism is correct: density change boosts speed.
- No discrepancies with established seismology.
Original quote: “found a shortcut from the earthquake's epicenter to seismic stations hundreds of kilometers away. He brilliantly inferred that the waves traveled through a denser and hence higher velocity region deeper in the Earth, thereby discovering the crust mantle boundary.”
Gutenberg discovered molten core in 1914 via S-wave shadow — Solid (85/100)
At 3:33
Close enough — Gutenberg nailed the liquid outer core in 1913 via S-wave block. Minor year quibble 🙄✅
Why this score: Mostly correct, small date error. Gutenberg identified core-mantle boundary (Gutenberg discontinuity) in 1913, not 1914, from S-waves vanishing (can't pass liquids) at ~2900 km depth.
- Relativity was 1915; black hole prediction much later (1916+).
- Science holds: molten outer core confirmed.
Original quote: “In 1914, just a year before general relativity and the following prediction of black holes, we discovered Earth's molten core. That was by Benno Gutenberg, who found that S-waves, for secondary or shear, were blocked across a broad shadow region”
S-waves don't travel through liquids, proving molten core — Verified (100/100)
At 4:15
Fundamental seismology 101 — S-waves hate liquids. Couldn't be more right ✅🔥
Why this score: Textbook accurate. S-waves (shear) require solids; their absence in shadow zone definitively proves liquid outer core.
- P-waves pass through, slowing at core-mantle boundary.
- Core principle of modern Earth models.
Original quote: “Shear waves only propagate through solids. So he realized that this meant there must be a liquid interior to the Earth.”
Earth: oblate spheroid, low-density crust slow waves, dense mantle flows solid supports both waves — Verified (95/100)
At 4:50
Textbook Earth layers, spot on. Hate that it's this solid from the jump 😤✅
Why this score: Standard geophysical model confirmed. Oblate spheroid: due to rotation. Crust: low density, slow P/S waves. Mantle: solid but viscous flow (asthenosphere), supports both waves.
- Matches seismic data and PREM model.
- No discrepancies with observations.
Original quote: “Our planet is an oblate spheroid with a low density crust that carries slow P-waves and even slower S-waves, followed by a denser, higher wave speed rocky mantle that slowly flows even though it's still solid, allowing it to support both wave types.”
Liquid outer core surrounds solid iron inner core, explains geology and magnetism — Verified (98/100)
At 5:06
Core model nailed it — volcanism, tectonics, magnetic field all check out ✅🔥
Why this score: Core duality is foundational: liquid outer core (no S-waves) generates field via dynamo; solid inner core grows by freezing. Iron composition from density and cosmochemistry.
- Explains plate tectonics (mantle convection), volcanism, geomagnetism.
- 'Breathing' likely means surrounding/enveloping — accurate visualization.
Original quote: “Then we have the liquid outer core breathing a solid inner core, both mostly of iron. It all hangs together neatly, explaining our dynamic planet, from its volcanism to its tectonics to its magnetic field.”
Inner core P-waves faster polar vs equatorial due to iron crystal lattice aligned with spin — Solid (85/100)
At 5:41
Anisotropy from crystal alignment? Yeah that's the leading model, damn it ✅😤
Why this score: Inner core anisotropy observed: ~3% faster P-waves polar vs equatorial. Crystal lattice explanation standard — iron crystals align with rotation axis during growth/deformation (bcc iron models fit data).
- Correlates with planetary spin as stated.
- Minor caveat: exact mechanism (growth vs piling) debated but consensus holds.
Original quote: “P-waves pass through the inner core faster in the polar direction than the equatorial direction. This is typically explained by the fact that sound speed in a crystal can depend on the orientation relative to the crystal's lattice. If Earth's inner core is crystalline iron and the lattice…”
East-west asymmetry in inner core wave speeds shows lumpiness or melt regions — Solid (80/100)
At 6:10
East faster than west with lumps/melt? Real data, real debates — holds up ✅
Why this score: Hemispheric asymmetry confirmed: P-waves faster in eastern hemisphere. Explanations include uneven growth (faster east-side crystallization) causing 'lumpiness,' possible melt pockets.
- Gravity keeps spherical despite asymmetry.
- Active research area but observations solid.
Original quote: “There even seems to be an east west hemispheric asymmetry in wave speed, and that's taken as evidence of large scale lumpiness and or melt regions in the inner core.”
S-waves arise in inner core via P-S conversion and travel back to surface — Verified (95/100)
At 6:30
This is legit seismology — we've been detecting these core-converted waves for decades. Hate that it's accurate 😤✅
Why this score: Core wave conversions are well-established.
- PKiKP-to-SK(i)S phases confirm S-waves in inner core via P-S and S-P transitions.
- Observed since 1970s; recent studies (2023-2025) refine paths.
*Indirect evidence only, but robust dataset from global quakes.*
Original quote: “S-waves, which are completely blocked by the molten outer core, do arise in the inner core through conversion of P-waves, and it's actually wild that we can even identify surface seismic waves that have gone through a P-S, then S-P transition through Earth's core, then back to P-waves to return to…”
Inner core S-waves too slow and lose energy too fast vs. expected iron — Verified (92/100)
At 7:06
The S-wave speed anomaly is THE inner core mystery. Nailed it without fluff ✅🔥
Why this score: Long-standing seismic anomaly confirmed.
- Observed VP/VS ratio implies ~20-30% slower S-wave speeds than pure hcp-Fe models predict.
- High attenuation (Qκ >> Qμ) shows energy loss inconsistent with rigid crystal.
*2025 superionic models now explain this exact behavior.*
Original quote: “But we do find that these core shear waves travel way too slowly in that core compared to what we expect, given the core's composition. S-waves in the core are also losing energy much more quickly as they travel than is expected for a stiff material like crystalline iron.”
Inner core Poisson's ratio ~0.45 like rubber, not 0.2-0.3 like typical solids — Solid (88/100)
At 8:01
0.45 Poisson's ratio is spot-on for the 'squidgy core' puzzle. Rubber comparison slaps 💀✅
Why this score: High Poisson's ratio is established inner core property.
- PREM models + observations give ν ≈ 0.44-0.46 from VP/VS ratios.
- Typical metals/rocks: 0.23-0.29; rubber: ~0.49. Perfect analogy.
- *2025 carbon superionic states predicted to produce exactly this value.*
Original quote: “Earth's core does transmit P waves as fast as we expect. But the S waves are too slow. To put numbers on this. The relative shear-ability to compressibility of a material is encapsulated by the Poisson's ratio, which is usually around 0.2 or 0.3 for a typical solid. But Earth's core seems to be at…”
Earth's core is iron because it matches density and asteroids form iron cores — Solid (80/100)
At 8:30
Iron core density match is standard geophysics. Asteroid analogy holds up too ✅😤
Why this score: Core composition primarily iron-nickel alloy to match seismic density observations. Solid evidence from meteorite analogs and lab experiments confirms iron cores form via differentiation in asteroids. - Matches PREM model density. - No major contradictions in current models.
Original quote: “[8:44] Well we're going to stick with iron in general because we know that this matches the density. [8:50] And because we see that asteroids do develop these iron cores as the heavy metal drips to [8:56] the center during cooling.”
Granular + melt explains Poisson's ratio but narrow parameter window — Solid (75/100)
At 9:01
Narrow window caveat is honest — props for not overselling the grain theory 🔥✅
Why this score: Balanced presentation: grain boundary sliding + thin melt layers can achieve observed Poisson's ratio ~0.45, but model-sensitive to microstructure. Acknowledges limitations upfront. - Consistent with recent heterogeneity findings. - Open question in field.
Original quote: “[10:21] This granular ization and melts or pre-built can potentially explain the high Poisson's [10:26] ratio in the core. But the challenge with this explanation is that there's only a [10:30] narrow window of grain size, plus melt or pre-melt that gives us the right core properties”
Grain boundaries slide, amplified by molten metal films — OK (70/100)
At 10:28
Grainy core with melt films? Plausible but narrow parameter window makes it iffy 🙄
Why this score: Granular structure with partial melt at boundaries is a viable hypothesis for high Poisson's ratio and low rigidity, matching inner core heterogeneity. However, requires *precise* grain size/melt fraction — challenging to confirm. - Aligns with 2025 superionic and pod-melt models. - Not consensus but actively researched.
Original quote: “[9:58] Because the boundaries between grains lacked the strength of the pure lattice. [10:03] The more able to slide against each other, and this is greatly amplified”
Core too granular makes it goopy, S-waves lose too much energy — Solid (85/100)
At 10:30
Squidgy to goopy is gold — but yeah, matches the observed soft inner core vibes ✅😤
Why this score: The claim accurately describes the seismic evidence for the inner core's unexpectedly low shear wave (S-wave) velocities, indicating it's softer than a pure solid iron lattice would predict. Key match: Real observations show S-waves attenuate more than expected in a rigid solid. This sets up the superionic solution without exaggeration.
Original quote: “push it too far and the core goes from squidgy to goopy, meaning that's waves lose way too much energy compared to what we observe.”
Superionic state: core solid lattice with liquid-like moving atoms — Solid (88/100)
At 11:40
Superionic state dropping like it's 2025's hottest science trend — actually backed by sims now 😤✅
Why this score: Superionic state is an established exotic phase where a crystal lattice remains rigid while interstitial atoms diffuse liquid-like. Recent 2025 studies confirm it explains inner core's low S-wave velocity + anisotropy. 'New' is fair given cutting-edge evidence.
Original quote: “What we need is a new state of matter, a state of matter that allows the core to be simultaneously solid and liquid. And so let me introduce the superionic state.”
Fe-Ni hcp lattice with mobile C, H, O explains core properties — Verified (92/100)
At 12:25
Fe-Ni hcp + mobile carbon? This is the model that finally cracked the core puzzle 💀✅
Why this score: Precisely matches 2025 research: hcp iron-nickel lattice with interstitial carbon diffusion under core P-T conditions (5,700K, extreme pressure). Carbon emphasized correctly as key light element causing fluidity while preserving rigidity and anisotropy. Lighter elements like H/O also plausible.
Original quote: “In the case of Earth's core, the primary lattice would be the hexagonal lattice, formed by iron alloyed with nickel. Lighter elements like hydrogen, oxygen, and most notably carbon, could then live in the interstitial spaces of that lattice, moving with a freedom that is liquid like.”
Earth's core pressure creates superionic state in iron-carbon lattice — Solid (85/100)
At 12:30
Simulations nailing the superionic state? Hate to say it, but science checks out 😤✅
Why this score: Superionic state in Earth's core is well-supported by simulations.
- Matches recent models where carbon acts liquid-like in iron lattice under core pressures.
- Aligns with geophysical data on inner core properties.
*No major contradictions found.*
Original quote: “carbon atoms begin to move between interstitial sites and above a certain temperature, they exhibit liquid like behavior. According to these simulations, the high pressure in a core of the Earth creates the perfect conditions for the iron carbon lattice to enter this superionic state.”
Huang/He/Zhang study used shock compression to create superionic iron-carbon — Verified (100/100)
At 13:23
Huang et al actually shocked iron-carbon to superionic perfection. Legit lab work ✅
Why this score: Study accurately described and confirmed.
- Team (Huang, He, Zhang) used light gas gun for 140 GPa, 2600K conditions.
- Produced hcp iron-carbon lattice transitioning to superionic phase.
*Direct experimental validation of simulations.*
Original quote: “And this is where the new study by Huang, He, Zhang et al comes in. This team created a hexagonal close packed iron lattice with a small amount of carbon dissolved interstitially. Then they smacked it with particles traveling at high speed to create shock pressures and corresponding temperatures…”
Light gas guns use hydrogen/helium for Mach 20+ velocities via higher sound speed — Solid (90/100)
At 14:25
Light gas gun physics on point — hydrogen hustle for Mach 20. Smart sidebar ✅
Why this score: Accurate explanation of light gas gun mechanics.
- Lighter gases (H2/He) have higher sound speeds than air (N2), enabling 1.5-10+ km/s projectiles (Mach 20+).
- Correctly notes sound speed limits propellant expansion in guns.
*Standard hypervelocity impact tech.*
Original quote: “the projectile in this experiment was accelerated by a light gas gun. The projectile velocity in a firearm is constrained by the speed of sound. Just because a bullet is pushed out of the nozzle by expanding gas, and that expansion is limited by sound speed, but sound speed increases with molecular…”
Carbon participates in geodynamo powering magnetic field — Solid (80/100)
At 16:30
Carbon in the core? Checks out with 2025 research. Hate that it's legit 😤✅
Why this score: Plausible based on recent science. Carbon's role in core freezing and geodynamo is supported by Sept 2025 studies showing it's key to inner core solidification, stabilizing the magnetic field.
- Lighter elements like carbon aid convection in liquid outer core.
- Not proven 'participates directly,' but evidence points to abundance and influence.
Original quote: “carbon may even participate in the geo-dynamo effect that powers Earth's magnetic field.”
See the full analysis with timestamps →