$40 in a next few weeks is not possible IMO. He probably just wants to create some fear in the current market.
Think I heard somewhere about this

and how can we be convinced of the impossibility of such an outcome? it's only a 50% drop.%
Maybe it's just me who doesn't want to see ETH that low lol. But if ETH goes below $50 then we have to prepare ourselves for a big panic sell.