Switchy,
Could future scientists be responsible for the origin of the universe?
Its actually a very interesting question and the answer isn't quite self-evident. Its theoretically possible even if not very likely.
Igor Novikov is a theoretical physicist who has been working on time travel solutions for many years. He's been researching self-consistency issues (paradoxes) looking for solutions to the problem. He's even coined a legitimate term -
jinn. It comes from the Arabic word jinni (Genie). Jinns are particles that are caught in a closed time-like curve (CTC). They have a circular path through time-space. They have no creation point and they never decay. They just "are" - like magic - never having been created.
He even postulates that it might be possible for the particle to interact with itself if it were to loop back and meet itself in the past.
He's posed some theoretical work that just might allow for such particles to exist. The math and theory seem to work at near Planck's Length but they probably don't work on the macro scale (which obviously would include the entire universe).
But...who knows?
Here's a link to one of his major papers on Lanl:
"Time machines and the Principle of Self-Consistency as a consequence of the Principle of Stationary Action"
http://xxx.lanl.gov/abs/gr-qc/9607063
The paper was peer reviewed and accepted for publication Int.J.Mod.Phys. D5 (1996) 445-480.