That your prediction is 99% is not possible, cryptocurrency market just growing and the market capitalization increased in every years. ETH is number one altcoin according to market cap and not possible going down to $30. Better you make research others new coin that can be give the same return like ETH.
Well, this is hard to believe, the ETH price that drops to $ 30 then the Crypto market will no longer exist, in my opinion we should not post this news as they will affect the psychology of some new investors , so they will be more likely to sell ETH to the market and prices will likely fall sharply in the future.
I have always told myself after all the past incidents in the market for a long time now is that anything is possible and as long as we are in a decentralized market, any value can be attained at any point in time. A lot may feel it is going to be hard, but of course, if ETH were to fall to $30, it would not happen overnight as that would be some long consistent thing with fluctuations up and down in between.
It does not sound like something that could happen in reality though, since that would be a long way down, but I always have at the back of my mind that as long as it is crypto, nothing is impossible.