They are having big games

Unless you have already cleaned up with isopropyl alcohol, I would suggest more flux. It always works for me.

If you are sitting next to me, I would go with lens inspector.

There was a paper a while back that looked at viability bias in these diagrams, but I can't remember the conclusions or how main stream it was.

Are these diagrams already corrected for effects like white dwarf viability at distance red-shifted red giants?

On the early dialup bulletin boards, dark matter and dark energy posts got transferred to the alternative theories section because the guy we would now call a moderator did not think they were real.
As the "most sensible nutter that posts there," I had the power to send them back the physics.

I didn't think you liked soft science.

Is showing my ideas were wrong. I assumed billions of years of cosmic rays going in and secondary proton radiation going out would produce a chemical cryogenic bomb rich in hydroxil and unstable nitrogen compounds.
Maybe sum do just go pop when they warm up.

What's next for the mechanism?
A magic chessboard is a bit more of a coding challenge, navigating pieces around each other.
Maybe a battle ship game bringing a reverse polarity maget up under squares.

Isn't this just saying a simulation of our universe can't be done inside our universe?
So a bit like you can run a Commodore 64 emulation on a PC, but a C64 can't fully run an emulsion of itself.

The external universe the simulation is running in, maybe has more dimensions than ours.

I've not done much soldering for years, but I liked to use lots of flux and then clean it off with IPA to stop corrosion.
Dry joints with solder not shiny, tend to fail with time.
It worked when I put it away syndrome.

I did the vertical fan on an rc car version.
There were only 2 issues, zinc carbon batteries and balloon hovering in trail of smoke from speed controller.

Have you thought about doing the 3d version with a ball or balloon held in a vertical air draft produced by a fan you are controlling?

Dust seems to get very complicated the deeper you dig into it.
A while back there was something about larger grains clumping faster directional in UV light, is that still a real thing?

Progress ?
Looks like you are going around in circles😀

Self playing theremin?

Using USB with a microcontroller and a stepper motor driver chip is cheating 😀
Was much more fun 40 years ago to drive the stepper motor coils from BASIC poke commands on a Commodore pet via transistor H bridges on the parallel printer port.
We had the motor held down to Mechano with a Jublee clip.

If that does not work, then may I suggest a bigger hammer.
I stick to Lego. (Not in a super glue way)