no didnt go negative, and it only takes around 1,5-2 hours to get there, just constantly clicking on the upgrades random number
I think it might be that they have a check for if it is negative, and set it to 0 if it is.
That is likely what happened (still wierd that it was 2t and not 4t but that's their decision)
Thx for the info tho =D (also sorry for the very late response)
