"That could run your heart for 50 lifetimes."
What exactly did he mean by this? Was the reactor meant to have positive effects on Tony's body besides keeping the shrapnel out of his heart?
>>94723726
It means they can draw on the energy from the reactor to power other devices, and not just the magnet keeping the shrapnel in place in his heart.
He only needs the first lifetime, he can spend the other 49 lifetimes on other shit
>>94723726
It means that the arc reactor as the proportional energy of 50 lifetimes worth of car batteries.