wedrifid comments on Some reservations about Singer’s child-in-the-pond argument

[wedrifid]

That’d be in the ballpark of 1e30 joules, or 1e14 megatons of TNT: half a dozen orders of magnitude more than the Chicxulub Crater, but about fourteen orders of magnitude less than a supernova.

So from the sounds of it extinction of complex life on earth but nowhere near enough to destroy the planet.