If Aliens arrive with their tech to traverse world wouldn't our weapons pretty much look like sticks and stones to them? Also how do we not catch a disease from them or vice versa?

Don_Dickle · 3 months ago

If Aliens arrive with their tech to traverse world wouldn't our weapons pretty much look like sticks and stones to them? Also how do we not catch a disease from them or vice versa?

threelonmusketeers · 3 months ago

Any vehicle that can cross interstellar space in a reasonable time also has enough energy to destroy a planet, simply by crashing into it.

Depends on the size of the craft. If it is only a few meters across, I think it would just burn up in the atmosphere before it even reached the ground.

@[email protected] · 3 months ago

If it burns up in the atmosphere with relativistic speed, it burns up the atmosphere.

@QuadratureSurfer · 3 months ago

Relevant xkcd video: https://www.youtube.com/watch?v=3EI08o-IGYk

@[email protected] · 3 months ago

True, but damage still depends on craft size. At the really small end you’re basically just talking about a normal cosmic ray.