2 ms·
> one cannot simply specify the system evolution over long time-scales. While practically true, this isn't technically correct. If you knew the masses, velocit
by thayne 5y ago
> one cannot simply specify the system evolution over long time-scales.
While practically true, this isn't technically correct. If you knew the masses, velocities, and location with infinite precision and could perform all operations with infinite precision, (also assuming no external interaction and quantum mechanics doesn't come into it), you could know the state of the system for long time periods. The problem is we can't measure things that accurately.
- beervirus 5y agoIt’s true even with arbitrarily good measurements when you get to the level of quantum mechanics.
- amluto 5y agoIf you know the initial wave function (which you can’t measure, but you could in principal choose and set up three bodies accordingly), then quantum mechanics is deterministic. If you throw the standard model in, you get a mess, though.