I am temped to do Bill Gates here and say: 64bits should be enough for everyone (in the common case). If not - using SSE like maths it's an option too. Using bi

I am temped to do Bill Gates here and say: 64bits should be enough for everyone (in the common case). If not - using SSE like maths it's an option too. Using bignums by default would make everyone suffer - they do come with a price and the hardware can't support such a bizarre beast naturally.