> First, let's assume you have a system with no error-correction nor parity. The probability that you'll experience a bit error during the time T will be 1-(1-p)^m .
OK, let's assume that.
> For T=1 hour , p = 1.3e-12 and m = 42^308 that gives 0.044 or 4.4% .
OK, let's assume that.
> For T=1 hour , p = 1.3e-12 and m = 42^308 that gives 0.044 or 4.4% .
WTF? Where did those figures come from?