Big physics thoughts

I don't know who the creator is behind the channel this video comes from is, but as far as I can tell, the science content is accurate.   Today I watched this one, which starts an explanation of what it means to say that mass is energy (as in the famous Einstein equation): 

 

It gets into the matter of quarks and how they contribute to a proton's mass, and what mass means in a very "meta" sense. It's not simple, of course.  

And that aspect - the complexity of what it was explaining - got me thinking that this is a reason that the simulation hypothesis for the universe seems very improbable to me: why would you simulate to such level of tiny complexity?

I mean, when you think about the old particle/wave duality question, the simulation hypothesis  has some appeal, because it is easy to imagine the universe as being the equivalent of a computer game which only bothers rendering the part of the game's internal universe you're looking at or interacting with. But when you get to the vastly complicated question of quarks (or other really odd aspects of particle physics - like neutrinos that change as they travel along and zip through matter like it's not there), the whole idea that a simulation would go (or need to go?) to that level of complexity just seems very improbable. 

Oh, and speaking of neutrinos, I mention them because I recently re-watched this video, which I don't think I have posted before, about how it seems quite likely that every now and then, a human at night might notice a flash of blue light that is actually a neutrino hitting an atom in your eyeball.    Cool: