Do you guys think benevolent extraterrestrials are affecting the earth in any ways other than making themselves visible on a fairly rare basis? Or do you think, from their view, it must be us who turns things around? I'd love to hear your responses.

Can anyone recommend some good Youtube videos worth watching? Preferably talks/presentations 1-3+ hrs long. I've been trying to find things by myself on Youtube, but I'm sure some really good stuff is hidden under different search terms.