Yeah that was stupid of me, I should have thought of that. It's just that when a subject like this get's someone on the edge of their seat and soooo anxious to know what's going on, they try to come up with as many reasons and possibilities as they can.
But what i ment was, that regardles of weather or not the TBB is "that jutsu," it's still a posibility that it's one of the reasons why Jiraiya taught the rasengan to Naruto. I wasn't just giving a hypothosis on what "that Jutsu" was, but also a neat idea as to one of the many reasons as to why Jiraiya taught the rasengan to Naruto.
I mean think about it, If naruto didn't learn the rasengan, then he wouldn't have come up with the shadow-clone idea while training with the rasen shuriken or sage chakra, meaning that it would have taken him months to learn the TBB rather than the possability of just days. I was always under the impresion that Jiraiya thought Naruto would eventually learn to control the Kyuubi, and I'm shure that Jiraiya already knew of the TBB. What if Jiraiya just put the #s together?
I know that "that jutsu" definately isn't the time-space jutsu Naruto's father knew, and if it's not the TBB then i'm out of ideas from the top of my head of what "that Jutsu" is. We'll just have to wait and see