Can you do algorithms in your head with more than two or three variables and reliably get the right answer?
Notably, such examples wouldn't exist if computation was strictly a subset of thought, but that can be waved away by acknowledging that the brain has finite resources that it does its best to use sparingly. Also, brains definitely run algorithms with staggering numbers of variables, e.g. object recognition from noisy sense data.
And all the results about all computers being equivalent only work if they have access to infinite storage and power. That computation isn’t outside the set of all theoretical thoughts, it’s just outside the set of all ones in actually existing human brains that don’t have access to a pen and paper.
As to simulating a ball being thrown, that’s one thing that the brain already does. Visualization is a simulation.
Like if you're a bad shot you can't install an update to turn into a sniper. Of course, snipers do get to be that good by practicing enough, but I don't know if they visualize the target or do it with conscious math.
What’s important to realize is people don’t just picture the path a ball takes but also the feel as they make a throw. Predicting the path of a thrown ball to be able to catch it is a another sign of simulation, but combining that with a simulation of how a throw takes place is useful.
Pool is clear example of the brain doing physical simulation. The exact positions are unique, but people learn how to predict what will happen to figure out what’s reasonable to attempt.