Casimir Vacuum Energy and PBT: What MicroSPARC Does and Doesn't Show

May 2026

In May 2026, Harold “Sonny” White (the NASA EagleWorks physicist known for warp-drive research) announced Casimir Inc. and a new chip called MicroSPARC: a battery-free device claiming to draw continuous electrical current from engineered Casimir cavities, gaps between conductive walls spaced about 100 nanometers apart.

What the Casimir effect actually is

The Casimir effect isn’t new or speculative. It was predicted in 1948 and confirmed experimentally starting in the 1950s, refined many times since. Two closely spaced conducting plates restrict which virtual photon field modes can exist in the gap between them. That restriction creates a small imbalance in radiation pressure, pulling the plates together. The pressure at separation $d$ follows a well-established formula:

$$P = -\frac{\pi^2 \hbar c}{240 d^4}$$

At $d = 100$ nm, that works out to about $-13.0$ Pa — small, but real and independently measurable. Nobody disputes this part.

What’s actually new, and unverified

MicroSPARC’s claim goes further: that a one-way “quantum ratchet” of electrons tunneling into these lower-pressure cavities generates continuous, usable current with no external input. That’s a different, much bigger claim than the static Casimir force itself, for two reasons. First, the only measurements so far are Casimir Inc.’s own, from their own prototypes, in their own labs — no outside lab has reproduced the result. Second, continuous net power from a passive one-way ratchet runs into a known problem in physics (the “Feynman ratchet” issue): if the ratchet is exposed to the same fluctuations it’s supposed to rectify, the asymmetry tends to wash out and no net work gets done. Neither point means the claim is false. Both mean it isn’t established yet, and shouldn’t be treated as if it were.

Where this connects to PBT, honestly

It’s tempting to read “the vacuum has real pressure structure” as support for Pressure-Based Theory, since that’s close to PBT’s own premise. But the connection is thematic, not mechanical. The Casimir effect is derived entirely within standard quantum field theory, requiring exactly the “virtual photon” framework that Paper 3 explicitly sets out to replace. If MicroSPARC works as described, the physics explaining why is orthodox QED, the same theory PBT proposes an alternative to, not evidence for PBT’s push-particle mechanism.

This site’s general position

Outside research that shares PBT’s starting intuition (that empty space isn’t empty) will get mentioned here when it’s relevant, with the same standard applied every time: is the underlying physics independently confirmed, and does it actually distinguish PBT from the mainstream explanation, or just resemble it in language. Most of the time, as here, the honest answer is that it doesn’t do the second thing even when the first thing turns out to be true.

Bottom line

A real physicist is doing real, still-unverified work in a research area that resonates with PBT’s starting premise. Worth knowing about. Not confirmation of anything PBT claims.

Source: Owen Lewis (@is_OwenLewis) on X, May 12, 2026, citing The Debrief.