OT: Carbon Dioxide races -> known vs unknown -> terraforming mars -> is or is not

[deccan]

Originally posted by Taera:
how can you claim we know all particles in the universe? perharps somewhere there are atoms that have gravitons orbiting electrons and thats it for the atom. and dont start telling me there are no gravitons, its not proven. Or perharps atoms with quadraple cores? and how you know its impossible to have 1/2 of a particle? if we cant do it it doesnt mean its impossible. You cant go at the speed of light - who said its impossible?

In principle, all of that could be true. In principle, it could be true that there is a Santa Claus who has magical powers to avoid detection. In principle, it could be true that there's an invisible, pink unicorn looking over my shoulder as I write this.

The only thing that separates things that could be true in principle and things that we do know to be true is evidence. And the weight of evidence so far doesn't favor your propositions.