Just watched a vsauce on asteroids and it showed I think a visualisation of one the grid coin projects I used to dedicate computing power to. All the possible (ee) asteroids (knowing - nick cage) out there. Basically all the 10km ones areapped we good for 100 odd years. The 1km ones, whole continental plate but not full blown extinction, we know 98 % of those..
End scene-set.
OK. So. Question is... Can we get a 'blowdart' and chip the ones we do know about. Then just put up 'shark nets' to beep if anything hasn't checked in.
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