Actually, I'm kind of in agreement to the stance Phicksur holds. It's not as if you can tell what it is by the link itself, and randomly clicking things isn't wise - especially if you're one of the masses that tends to execute code as default. I personally wouldn't (and didn't) click it just because it's youtube and would rather prevent generating usable data for them by downloading it remotely. I'm loathed to waste b/w on my host connection in throwing that media back here without knowing what it is. The general trend on the interwebs is someone spits a link with an abstract comment - 10,000,000 people think it's brilliant, and it turns out it's just a dog in a hat and a complete waste of time, effort and bandwidth. Where as the links that are accompanied by some form of tangible details should indicate if you would be potentially interested in following it before sending GET requests.

Very well said John, I've been perusing the boards and even catch myself thinking decades ahead. I think our endeavors need to be "grounded" as you've described so that when our descendants finally do "reach for the stars" they're stepping off from a strong foundation that was established by the first Asgardian works and research. We're here to ensure humanity can be at its best when that day comes.