Talk: Golden Cookie

"You can see how long you have left by using the golden bar at the bottom of the screen."

What golden bar?

"Lucky!" cookie, optimal bank amount

The section on the "Lucky!" cookie outcome claims that it gives the largest payout if the banked amount is equal to 900 seconds of production. However, using the formula in the article we get this: $0.15\times bank+13=900s\times cps+13\Longleftrightarrow 0.15\times bank=900s\times cps\Longleftrightarrow bank=6000s\times cps$

According to this calculation, the optimal payout occurs at 6000 seconds, or 100 minutes, of cps in the bank.

I'm only writing this as a talk entry instead of making the change because this correction has been reverted before. Am I missing something here?