My project estimates are based on
- careful analysis of the requirements.
- gut feeling.
- Albannach's rule of thumb: 882459
- a fair dice roll.
- some random numbers i pulled out of thin air.
- print "$day_of_week months $day_of_month days\n";
- carefully calculating how much paid overtime i need to pay for my next vacation.
- how much i like/dislike my customer.
"I know what i'm doing! Look, what could possibly go wrong? All i have to pull this lever like so, and then press this button here like ArghhhhhaaAaAAAaaagraaaAAaa!!!"