Why didn't the time traveler 'see' that he was going to fail? And so on.....

There are NO "simultaneously occurring timelines". This coming from someone who caused a change in the naming of 'String Theory' after discussions with one of the team's theorists. I re-cognised the fact that it was a psyop for the future. How's that for 'time travel'? The purpose is to completely confuse the public and keep them ignorant of the fact that there is one 'reality' that encompasses all 'viewpoints'. Varieties of potential futures in theory 'collapse' into the One upon any observation/decision/action.

'Time Travel' was/is to be used within Operation Stargate. The 'Anannaki' and Alien Invasion psyops.

Inside Information allows blackhat agents to play psy-games.

Example: In the past, Donovan Berlin jr, of Operation Stargate (see father's bio) gave a letter to a Colorado judge, telling him it would be relevant in the future. When the Gainsville Florida Killings occurred, it was supposedly found to have details mentioned in the letter given to the judge. Berlin was arrested, committed, and released, only to go back to other psy operations within Stargate. He then claimed to be the author of a time travel themed movie starring Tom Cruise. Operation Stargate operates in several areas. It hatched 'J-rod' with Dan Burish which spawned the 'Ganesh/God Particle' psyop that fueled the building of CERN. And so on.

The Paradoxes created by the notion of Time Travel negates its possibility. I'd shoot my own grandfather in his youth to prove the point, but then I'd never have lived to go back and do that.