Please do not hijack my topic, afan.
Wheat, I guess I was a bit shortsighted in saying "never." I am not naive to believe that what we know now is truth. However I don't think the "100 years ago people would be shocked at what we know today" thing is true. The rate of increase in knowledge is INSANE. I'm going to pull some numbers out of my ass, but say the knowledge in the last 100 years will be like in the next 10 years or something. For this reason, I think we have a much better gauge on "truth" than 100 years ago. While it is certainly dumb to assume what we know is true, it is pretty rare in the last while to actually DISPROVE things. We are simply improving on ideas. The age of the earth isn't going backwards. And the adjustments have been slim as we learn more. Nobody claims to know the age of the earth, but they are confident it is in some ballpark, using statistics and solid data, not conjecture like most science centuries ago.
This is why I think, although it may be stupid of me, that what we know now is much safer than what people knew hundreds of years ago. We base things on evidence, on mathematical proofs, and statistical analysis. Now, when people start conjecturing about stuff, that is when we can't be so cocky. But on things about the age of the earth, heat of an object billions of miles away, the way molecules work, etc., I think we have put so much EVIDENCE behind this stuff that simply didn't exist when we make fun of "LOL THE EARTH IS FLAT." Their methods were very different than ours, and even if ours aren't perfect, we are at least using PROOFS and data.
Another thing is...
Okay, how long do you think humans will last? 100 thousand years? Even a million years? You think we'll have the capability to communicate with others in our lifetime? Now if you figure intelligent life in theory has been evolving for billions of years, certainly all of their civilizations would have had the ability. Many civilizations! Yet I have never heard of anything (besides quack theories) about our planet being visited by others. I just think that IF there were many other intelligent civilizations in history, and that if we think humans will be able to communicate with other intelligent life, that sometime in the last billion years we'd see evidence on this planet of THEM coming to check out our evolution.
Etc., etc. I mean I'm not educated on the subject at all, still fun to think and talk about for me though. I just think the odds of us progressing to the point that we'll contact others, let alone there being others worth contacting, is very very slim. I have a hunch humans are going to fuck themselves over far sooner than when we'll be able to do anything about successfully leaving this planet.