I don't know if I want to commit to counting down from a trillion...but here's a silly game we can try.
(1) A poster posts a starting number to count down from.
(2) Each successive post decreases the number by 1.
(3) You may not post twice in a row.
(4) When the count reaches 1, a poster may pick a new starting number and restart the countdown.
Winning and losing:
A countdown is successful if it actually reaches 1.
The winner is the poster who sets the highest starting number that results in a successful countdown.
The loser is the poster who starts from a number so high that the countdown never reaches 1.
To gauge the patience level of our forum, I'll begin modestly: