From looking at it in the first glance it looks like we've rebounded and have touched the tip of the prediction curve. Based on the model it looks like Bitcoin needs to grow at a rate of 0.484 % per day which may not be possible considering the current stangating price, but it could be possible that a future sharp rise in price could coverup the current small percentage growth or the dips. The only concern is that the curve being parabolic seems to get too steep at around year 2020 and I guess it looks like a huge difference to attach and to stay on track from there on. This makes me doubt how reliable or proven is this mathematical model. To be honest safer bets would be $50,000 or lower if at all a large estimate is to be made.

Also BTC accelerating much faster than his model, made him to bump up his next prediction, which is also kind of odd considering that it has fallen since then.