‘I have not …volunteered my sperm’: Why Elon Musk said this to an X user

Elon Musk’s SpaceX aims for a Mars city in 30 years, focusing on long-term survival and bioengineering. Denying donating sperm for Mars, Musk envisions uncrewed missions in 5 years and human landings in 10. Praised on X, he reiterates the need to reach Mars first for secure civilization and multi-planet species future.