I think it's more a matter of hardware and compilers usually being widely-used and well-tested. You're just not very likely to discover a bug in an Intel CPU or

I think it's more a matter of hardware and compilers usually being widely-used and well-tested. You're just not very likely to discover a bug in an Intel CPU or GCC, while you're newly-written code, being newly-written code hasn't been well-tested yet. If you're using one-off hardware or a brand new compiler, it isn't so unreasonable to suspect those pieces of having bugs.