You are grievously misunderstanding the nature of a theory.
*insert meta-rant*
(i decided to leave that out- it is another discussion for another
time(and in that vein- we need an official dictionary))
but in short, yes. there are feasible ways to do so, the only boundary
that we know of is money. ALOT of money. its complicated stuff, mind
you- but still, entierly possible.
also, humans did not invent time, we invented the measurement of time.
to say we invented time is to say we invented space and direction- and
we move through them just fine. (that point can be discussed in the
'is it possible to know anything thing)