Information is quantifiable in physics. PBS Spacetime has some videos on information theory if you’re interested. A very simple example could be the spin of a particle (say it’s either up or down). That represents one “bit” of information because it only gives you a binary response - the same as in a computer. We don’t have any great models once you get to the size of biology but in theory you can layer it up all the way from the smallest of subatomic particles and “measure” the information of anything.
I haven’t read the paper but an event is just any interaction between particles. Just literally anything happening. I wouldn’t be trying to learn much from this write up though and highly suggest looking into some better sources of information.
This is such a huge leap to make. It’s nearly equivalent to saying due to the fact that your coffee gets colder over time you can conclude that the entire universe is a simulation.
According to? Presumably if you can simulate an entire universe you have at least orders of magnitude more computational capacity than this universe. But apparently not too much more because you would “require” compression in order to fit all that data?
Just a few things that stood out to me as wtf moments.
EDIT: I forgot the best quote in the page:
Not even remotely true. It’s commonly accepted that the entropy of the universe is constantly increasing and it’s got nothing to do with the the universe as a whole being unable to lose or gain heat (from an outside source). Entropy increases because what’s inside, as a whole, is moving towards a state of equilibrium.