[Windflier]

There are some common sense rules of thumb about life in the Milky Way. To start with, create a timetable for it that is 14.5 billion years.

In time, I believe that scientists are going to revise that number upwards, again and again. It's my opinion that the known universe is much, much older than people currently believe it is.

[yefragetuwrabrumuy]

Life of the Milky Way galaxy, not the universe. (I did cite the estimated age of the universe, at 14.5, but the Milky Way is less, at 13.2 billion.)