"Within the last 166 million years, the human Y chromosome has lost most of its 1,600 genes at a rate of nearly 10 per million years. At this pace, the Y chromosome is expected to vanish in about 4.5 million years"
https://www.deseret.com/2024/2/26/24...illion%20years.
https://theweek.com/science/y-chromosome-disappearing
