As others have mentioned, SawStop can mitigate most of that risk (but not all - it's still possible to get kickback if you're not careful). I'd probably own a SawStop, if not for some of the questionable behavior if it's owner [1]. It's unfortunate, because they're very well made and designed saws.
You may want to check out the Bosch ReaXX, which has a similar tech in a portable job-site saw. SawStop is currently suing Bosch for patent infringement (which I don't fault them for; it was them trying to make it illegal to sell saws without their tech that didn't sit right with me).
It's not actually unlimited liability. Every AWS service has a set of default limits, and you must request AWS raise those limits before you can provision additional resources.
I agree with your larger point, but you're going to be surprised by a $500 bill, not a $500,000 bill.
You may want to check out the Bosch ReaXX, which has a similar tech in a portable job-site saw. SawStop is currently suing Bosch for patent infringement (which I don't fault them for; it was them trying to make it illegal to sell saws without their tech that didn't sit right with me).
[1] http://toolguyd.com/sawstops-stephen-gass-people-who-are-des... and a followup that's more balanced: http://toolguyd.com/sawstop-perspective-update/