Unless there's something deeply wrong with it in its code or something like that, I don't see why it couldn't reach 10K. But if it does, it's gonna be much sooner than 2020. Something started on November, the 20th, I don't know what but all coins have started soaring and now that they have some momentum, the best/more original ones will keep increasing in value.There isn't even that many services using Bitcoin (not to mention altcoins) so when it's a fully-fledged currency, it can do much better than it does now. Bottomline : if Bitcoin ever reaches 10K, it's gonna be by the end of 2014 I think, not a long time after that.