Technically everything could be possible and so many think that time traveling can and will be possible in the future. Many sceptics are sceptic, though and that can be reasonable. Her you see a recording of a man/woman/alien saving another man from a certain death. Was this angel like person someone from the future saving his own grand grand grand grand parent or something like this to make his existence even possible. One can only speculate and obviously not believing in something like this. But if this clip isn’t fake, it could be a good proof for supernatural or metaphysical evidence. Look and judge for yourself!