OT: Galactic sterilisation

[Puke]

whoops, got that Last post in before reading the wind-down. ignore me, as usual.

so, if we wanted a burst of radiation to sterilize the planet, am i correct that we could only expect to zap one hemisphere of it? it wouldnt be all that hard to repopulate and keep the species going if we had a whole half the world to work with. Maybe JurijD would get lucky, and only the americas would be wiped out. Admittedly, that wouold not bode well for our nothern and southern neighbors, but acceptable losses, and all that.