Maybe in a couples of years because if that should happen now it will be seen as bubble and will raise alarm
You are right here. This will be a bubble if $50k is reached even in upcoming years. I think bitcoin prices have to move gradually because only doing so they can even be fixed for some basic rate. Like now, we can say the fix amount for bitcoin is $4000, it means even bitcoin now falls it will mostly go till $4k not below it. This becomes a minimum level for this price. So if things are moving like $50k in just couple of years, the building would be weak and even a single dip make huge losses.