>>12
ok, so how do i scan the cosmic index?
I don't understand what you mean by this. Is this like the Godel number of some particular "universe" in the UD? I suppose you would have to run a modified UD which just scans for environment data you've captured, but I don't think that would always work as a lot of it might be algorithmically incompressible.
how do i predict the future?
You can never predict the future by running the simulation of the same universe as the one you're in (if you knew a program that runs it up to present), either because the universe has finite resources or because you're part of it. However, it can be done from the outside. Let me be more explicit here:
- Program B("you") is emulated by Program A("some machine in the UD")
- Program B cannot compute Program A to a step that was not already computed. To put this more simply, if you were to run a simulation of some computable universe, you would never be able to simulate past the present moment while being part of said computable universe.
Solution? Just get Program B emulated by another program different from A. ( In
>>9 that's explained in point 1, read that book for a thought experiment that shows how this could be possible. )
Of course, this doing something like this kind of defeats the point of prediction doing a prediction (running the computation) as you might no longer need the result, so for practical purposes (while being part of "Program A"), just use some form of induction (like in most sciences) or an AI like AIXItl or something more resource efficient. The human mind happens to be a resource limited general intelligence pretty damn good at prediction by inducing data from its inputs.
how do i travel through time?
Not in any trivial way, but if you can perform step 1 in
>>9, all you have to do is insert yourself in a simulation at the right state. This idea seems to have been explored by some in fiction as well:
http://www.fanfiction.net/s/5389450/1/The_Finale_of_the_Ultimate_Meta_Mega_Crossover.
Why would you want to travel through time though if you can just simulate anything you'd want to find out without having to expose yourself to any risks?