Huge assumption there lol, but I guess I see your point.
It's not an assumption, it's a conclusion based on the premises laid out in the previous sentences.
Everything seems to point towards that being the case for us, and absolutely nothing hints at a simulation
Maximum speed, minimum length, light is only a particle when we're looking at it....
Like there are other things that definitely point away from it being a simulation (eg gravity waves). But there's not nothing pointing towards simulation.
Sorry what I meant is miniscule gravitational forces across billions of light years.
Because of the ridiculous cost of calculating the force of gravity between every water molecule on neptune and carbon atom on exoplanet xjwhatever. Gravity waves suggest this is actually happening.
What community are we in? I don't actually believe simulation theory... it's a concise explanation.