Although Srinivasan's recent prediction may seem absurd to some, it is actually a very reliable prediction in the long term. He made this prediction based on the US banking system and hyperinflation, which makes it difficult to dismiss.
It is actually absurd. Srinivasan's prediction has a timeframe and it is too short to make Bitcoin reach $1m let alone half a million dollars in just 90 days. It isn't the price that is absurd but the time frame given.
We all know that in due time when adoption proliferate in every corner of the world. $1m per BTC is nothing because of it finite supply and the Bitcoin lost along the way of price realization.
Finally, i will say that people are learning to value BTC so we will be able to achieve it in the near future even if not in 90 days.
Learning the value is not enough if there is no adoption. Adoption creates demand that will make the price of BTC skyrocket. So by simply learning the value and no adoption is involved, Bitcoin will never reach $1m let alone in 90 days.