it would go all the way up to 20 mins, but no more then 30 for sure, it is based on a exponential distribution
You clearly have not actually looked at the history as it has taken over an hour to create a new block in the past.
(of course your post was made because of your ad-sig rather than for any actual "real reason" as you didn't even bother doing the slightest bit of research before posting)
well not, i did some search, it was not made purely because of the sig, i know that it can go to 1 hour or even more, but the average(of rising or falling above 10 min) is what i've wrote
p.s. i didn't include it at first because those(rising to one hour or more) were only isolated cases
