If we have a (classical) computer about the size of a room and if its computational power is only limited by fundamental limits to computation, what is the largest system we can study using different approximations/methods in a reasonable amount of time?
The question is out of curiosity and hence we need some assumptions. Please be free to edit the question if the following asssumptions are not reasonable or if we need more assumptions.
- Size of the room is 5m x 5m
- Reasonable time = 1 month
- Property to be calculated = ground state energy of the system
- Accuracy - milli-Hartree
- Type of the system - Alkenes of length $n$