How Many People Have Ever Lived on Earth?

https://www.scientificamerican.com/article/how-many-people-have-ever-lived-on-earth/?utm_source=Klaviyo&utm_medium=email&utm_campaign=TIS_100325&utm_term=people%20have%20ever%20lived%20on%20Earth&_kx=HCGYIXiQwYwcLRgu_ofLFi-PRM6GfuQxr55BB4gbPRE.WEer5A