I think I know why there isn’t more advanced life out there: as we do bigger and bigger experiments, the chance of making a mistake that can end planets increases as we are more technologically advanced..
>Runaway reactions cannot occur in a fusion reactor. The plasma is burnt at optimal conditions, and any significant change will simply quench the reactions. The reaction process is so delicate that this level of safety is inherent.
Oh yeah. "Safe, clean, too cheap to meter."
How do you know?