@Gamewizard71
I have, it didn't make it into the official branch however. Why do you ask?

"Well since a lot of the advanced ideas have been "shot" down because the coders want to preserve the simplicity of powder toy."

Lost credibility with me in less than one sentence.

Osmosis as an idea in physics only works because of the intrinsic properties of water, which TPT doesn't even come close to. It simulates particles, not molecules.

Individuals atoms wouldn't work as particles unless in a joking sense, and building a periodic table of elements that WORKS in TPT isn't going to happen due to the exponential nature of neighbor reactions involved and the IMMENSE coding task that would be involved. It doesn't help that the nearly infinite combinations of which would never even come close to fitting into a tiny 800 kb applet like Powder Toy. Not. Even. Close.

We already have Photosynthesis. Add PSCN to NSCN, apply photons. Plants burn with photons, it's supposed to work that way.

...If you can think of elements to fuse to make fusion, then have at it. The pressures and temperatures involved would make the explosions produced effectively pointless within TPT's scale of pressure and heat.

More accurate reaction speeds and properties also isn't going to happen. This game simulates falling sand games, not IRL physics.

Higher max pressure and temperatures MIGHT happen someday. But not anytime soon.

Electrolysis of various elements already exists. Check out Iron and Water.

Moving solids is vaguely possible, but not in the sense that people are actually asking for. If you want it, find a genius to make a fancy formula for it, and we're set. TPT is a particle sim, not a physics sim. Interlocking joints, falling balls, and other things aren't going to happen anytime soon. Powder Game's moving solids aren't normal particles, but things specially programmed into the game, such as stickman.