More nonsense from Bill. Gold fluctuates drastically especially recently. Does that mean all gold based monetary systems are crap? No it fucking does not.
The value of most things fluctuate but very rarely to the extreme that bitcoin does, but maybe this will change over time as bitcoin is still a new and experimental technology. I don't think we should be overly harsh on Gates though as he's been positive but cautious of bitcoin in the past and I'd rather have him talking about it than not or straight up verbally destroying it.
Bitcoin is still very experimental, let's see when it gets released. Also price doesn't matter as long as it works.