Some predictions seem pretty vague, even if the probability of hitting edge cases is low. E.g. "Will ETH be above $1,500 on January 27th?" begs the question on

Some predictions seem pretty vague, even if the probability of hitting edge cases is low. E.g. "Will ETH be above $1,500 on January 27th?" begs the question on which exchange? Or smaller ones like at which hour, does it have to be higher all day or just for a single trade, if for a single trade, if Alice sells Bob 0.01 ETH that day for $2k does that mean it was higher etc. In general oracle role seems pretty hard when big money is involved.