Looking at the growth trend of bitcoin from 2012, it can be seen that each time the price crosses the major governing trend line it takes about 100 days to reach the bottom. This time however it has taken about 150 days. If the bubbles timelines are proportional to one another the next crossing should be 180-200 days from the bottom on the 9th of May. The price at this time will be between $5000 and $6200.