Not entirely sure what @numba.jit is doing here as I haven't used numba - is it compiling to native CPU code? Another approach to speed up GoL would be to use a

Not entirely sure what @numba.jit is doing here as I haven't used numba - is it compiling to native CPU code? Another approach to speed up GoL would be to use a lookup table. 2^9 entries. It's kind of like having the sum pre-calculated. Using the lookup table approach with @numba.jit would probably be even faster yet.