In its most extreme form, transhumanism advocates limiting human population. This extreme philosophy is criticized for being eugenicist master-race ideology and infringing on basic reproductive rights. “The synergy of science and Torah is a positive thing, but it requires limits,” continued Rabbi Trugman. “Technology cannot trump everything. There is an aspect of hubris, taking the place of God, when people set out to create a new being, which is forbidden by Torah law. Or ruling over creation and life through euthanasia or selective eugenics, choosing who reproduces.” Many of the new techno-billionaires are attracted to transhumanism: Peter Thiel, the founder of Paypal, adheres to a form of the philosophy called “immortalism” and invests heavily in projects to extend life indefinitely.