Collective price prediction: How wrong were we?

Two months ago, we did a survey on this sub, trying to collectively predict the price of Ether on April 11th. This is the original post with the results of the prediction:

Yesterday, the day ended with the price being around 421 USD. It seems the collective prediction of the price failed. What do you think was the reason for that? A few commenters on the original thread were skeptical of the short timeline for the first prediction and only predicted the price for January 1st, 2019. Do you think this prediction could be more realistic, even though the first one failed? Or do you think we are just too biased to make a useful prediction?

Anyway, at least today we started to move in the right direction!