John D

Energy

Carbon-Neutral Synthetic Gasoline: Technology, Cost, and the Investment Case

The chemistry has worked since the 1920s. The energy efficiency is 9 to 16%. The cost is 5 to 8x fossil. Airlines, defense, and Porsche are buying it.

Minerals

Sangdong Tungsten Mine (2026): Non-China Supply, Defense Demand, and Allied Tungsten Reindustrialization

Sangdong is entering production as a major non-China tungsten source, with real value tied to ramp-up, recovery, and allied processing.

Magnets

NdFeB Permanent Magnets: China's Export Controls, the Global Supply Chain Crisis, and What Comes Next

Every F-35 contains 418 kg of rare earths. US-bound magnet shipments fell 93% in May 2025. China did not need to fire a shot.

Batteries

Solid-State Lithium Batteries in 2026: Are QuantumScape, Solid Power, and Factorial Worth the Investment Risk?

LFP cells cost USD 36/kWh in China. Nissan needs USD 65/kWh to break even on solid-state. That gap is the investment thesis, compressed to one number.

Quantum

Quantum Inertial Navigation for GNSS-Denied Environments: Can BEC and Cold-Atom Interferometry Replace GPS?

Not yet in full. Quantum clocks and gravimeters are already on submarines. A complete BEC-based IMU to replace GPS is 7 to 10 years out at minimum.

Recycling

Post-Industrial Villages: Human-Scale Production, Adaptive Reuse, and Local Economies After the Factory Age

Local production, adaptive reuse, and shared infrastructure are reshaping communities after industrial decline.

Rare Earth

Carbon Nanotube Magnets for Aerospace: Can CNT Technology Replace NdFeB and Reduce Rare-Earth Dependency?

China controls 94% of NdFeB production. A Virginia-class submarine contains 9,000 pounds of rare earths. Carbon nanotubes are one answer being tested.

Communications

HAPS vs GEO Satellites: Which Wins on Latency, Coverage, and Cost?

HughesNet median latency: 683ms. A HAPS at 20km: under 1ms. The gap is physics, not engineering, and it is permanently disqualifying for GEO.

Astronomy

Nanotechnology Infrared Optics for Astronomy Missions

Metalenz, DARPA ENVision, HWO, PRIMA, T2SL detectors, ALD coatings, and China's germanium ban: nanophotonic IR optics for astronomy assessed in full.

Communications

Airbus Zephyr HAPS: AALTO, 67-Day Endurance Record, NTT DOCOMO, and the Stratospheric ISR Market Assessment

The Zephyr is a solar drone that flies at 70,000 feet for months at a time. Here is what it does, who operates it, and whether it will reach market.

Deepsea

Deep-Sea Mining Robots: TMC, DSHMRA, ISA, and the CCZ Strategic Competition Between the US and China

France calls it environmental piracy. The ISA calls it a violation of international law. The US calls it a permit. Welcome to seabed geopolitics.

Deepsea

How Undersea Fiber Optic Cables Are Repaired: Deep-Sea ROVs, Cable Ships, and Global Internet Infrastructure

Undersea fiber cables carry 99% of global Internet traffic, relying on repair ships and deep-sea ROVs to maintain network continuity.