The countdown of bitcoin mining: 4 million is left
SinceJanuary,2009,thefirstbitcoinhasbeenmined.Itcostabout200daystomine1millionbitcoins,whileitcostover500daystosupply17millionbitcoins.ItisreportedbyCNBCthatthesurplusbitcoinswillbeminedinthenext122ye