The world population has quadrupled in my lifetime, so I would be willing to believe the old bit about βmore people are alive now than have ever died.β But itβs bunk. Estimated count of all people ever is 100 billion. There werenβt that many people in the past but our species goes back 50,000 years and that makes it up.
https://www.scientificamerican.com/article/fact-or-fiction-living-outnumber-dead/