Have aliens visited earth?

[w_alloy]

With the barrier of the speed of light, it is extremely unlikely (effectively impossible) we have been visited.

I think there is a chance that this barrier can be broken with space travel, but it is very unlikely (almost impossible) that this is the case. I think this is the key mistake most of the 26% who voted yes on Q2 are making, because if you think the barrier cant be broken I cant see how any logical person could say its remotely likely we've been visited.