Looking back at those predictions makes me wonder, will the replies in those "will bitcoin worth 1 mil?" threads sound stupid a few years later. 
1 million, yeah, it'll probably be as stupid 5 years from now as it is today. If the questions was 10 000, or even 20 000, perhaps it wouldn't. But reading through the sensible responses in the 1 mil thread it's just not realistic.When laszlo spent 10000BTC on a pizza in 2010, he (and everyone else) would never expect bitcoin price to be $1, not to mention $500 now.
https://bitcointalk.org/index.php?topic=137.0
I don't know. Has anybody spent 5 mil USD on a pizza?