[djf]

Soon the brigade will show up with the wisecracks about tin foil.

I doubt there is anything to it, but am reminded of the old saying “Some things are true whether you believe in them or not”

Alien DNA or pathogens could easily eradicate much of the life on Earth. We have no resistance, our immune systems might not even recognize it as dangerous. An example would be you can get a piece of glass embedded in your body and you have no immunological responses at all.

[dangerdoc]

Alien pathenogens doing the jobs that.....

[coconutt2000]

Alien DNA or pathogens could easily eradicate much of the life on Earth. We have no resistance, our immune systems might not even recognize it as dangerous. An example would be you can get a piece of glass embedded in your body and you have no immunological responses at all.

And you're assuming that alien pathogens would recognize us as food. ;-P