22. Suppose you place a single bacterium in a bottle at 11:00 am. It grows and at 11:01
divides into two bacteria. These two bacteria grow and at 11:02 divide into four bacteria,
which grow and at 11:03 divide into eight bacteria, and so on .

→It's 11:59 and your fellow bacteria are finally taking your warnings seriously. They
quickly start a space program, sending little bacterial spaceships out into the lab in search of new bottles. Thankfully, they discover three more bottles (making a total of four, including the one already occupied). Working quickly, they initiate a mass migration by backing bacteria onto spaceships and sending them to the new bottles. They successfully distribute the population evenly among the four bottles, just in time to avert disaster.

Given that they now have four bottles rather than just one, how much time have they gained for their civilization?