what you are asking is a delayed choice event. these are very difficult to do because they require a reinsertion of the relay. and there are other complications.
No, this should not be at all difficult if you really are posting from the future. For you see, just being able to register under this username, at the time you did, and post your first post is NO MORE DIFFICULT than what you claim to have done.
I can even make it simpler for you. You don't even have to pre-date a message with this username. All you have to do is go back to a time PRIOR to the time of your first post, and register with a username that I provide to you, and then make a new post at that registration time.
but something like this is possible. ive done this once before and now that our own mission is entering its final phase i may be able to get permission to do one for you at some point, especially if we need your help.
Good. Glad to know you think it is possible. Although I am going to bet that you will come forward and claim you did not get permission, or some other lame excuse that will prevent you from complying. But in the off chance that I am wrong (it happens, but not very often) /ttiforum/images/graemlins/smile.gif then here are the parameters:
1) I want you to register with the following username (which has been verified as non-existent in the current database): "Big_Faker".
2) I want you to register under this username at some date PRIOR to April 17th, 2006 (the date your current username registered).
3) I want you to immediately post the following message with the username defined above in (1):
"This message is to prove to RainmanTime that I can post from my time to a time prior to April 17th, 2006."
There is your challenge. Meet this challenge and I may just have to believe you!
if i am correct, this is utterly impossible with 2006 ad technology.
You are utterly incorrect in several of your assumptions. Let's deal with them:
the best computers in the world in 2006 ad cannot factor even a 200 digit number. or they can but it takes them years.
Incorrect. A 200 digit integer was factored in several months (not years) as part of the
RSA Factoring Challenge.
this is something that should take decades or even centuries with 2006 ad technologies.
I don't think so. While factoring is certainly not linear with regard to number of digits, it is not exponential. If 200 digits can be factored (with 2006 technology) in several months, I would guesstimate that 500 digits could be accomplished in WELL under a decade, and certainly nowhere near a century. Another factor here is how many CPUs you have running in parallel. The more you have, the quicker the work gets done.
anyone with a calculator or math program that can handle 500 digit numbers
And therein lies the "rub" in verifying your factoring. Not many people have such capability. I certainly do not have this capability off-hand. However, while I am flying to Australia tomorrow night I will certainly have plenty of time to do some programming. Perhaps I can gin-up an extended precision integer operation program to check out your factoring. I'm going to have to dust off all my old grad school books on digital computation theory to do it, but it might while away some hours.
it should be easy for you to confirm that we can factor it:
Not really. But perhaps I (and maybe others) will take up the challenge to verify your numbers. Typically, I don't deal with math that requires any more than quad precision, even for such things as spacecraft control. However, I know enough to work on a program. Perhaps a more programming-savvy guy like bogz could do one faster than I?
In any event...I await your acceptance of my own challenge.
RMT