If I can't modify the intuitions I feel, I may have to try just multiplying my feelings by a factor - e.g. adding 100% time to each estimate.
You could measure your estimated time and real time, and calculate the factor from that data. Of course this works best if your bias is consistent, but the data would tell you how consistent it is.
Kaj Sotala said:
So maybe we should celebrate failed attempts more often ... I for one can't think of anything I've failed at recently, which is probably a sign that I'm not trying enough new things.
So, what specific things have you failed at recently?