2 ms·
The universe is finite, so Turing machines are still more powerful. We know the universe is finite because it has a finite volume, and even if it were to expand
by naasking 4y ago
The universe is finite, so Turing machines are still more powerful. We know the universe is finite because it has a finite volume, and even if it were to expand infinitely, which is debatable, it still has finite extent in spacetime because of heat death.