Earlier quoted context omitted.
We still have plenty of room on this planet, and upcoming medical technology may change the equation on the number of people dying. I hope to start a family before people start imposing measure to limit population growth.
Better medical technology means people die older. Older people already own most of the capital, having them live longer isn’t going to get us to a healthier society that’s not as biased towards existing capital versus innovation and income.
That's a separate problem to the population crisis. People thinks population's going to decline. I am not so sure. Things can change a lot in a few decade.
All we can say that at this current time, the trend is toward population decline.