in some asteroid and plan is to dig up that gold, when that's done the price of gold will tank like the venezulean currency it seems

It is possible. Something similar happened in the centuries 16-17 as Spaniards flooded Europe with new gold and silver from America. The consequence was a huge inflation. (Bu not so much as in Venezuela).

But I'm not sure if this asteroid was discovered, or is only a theoretical possibility. Maybe the next big story - investment bubble - will be in the space exploration sector, asteroid mining.