That lasts 10 years? https://www.euroclinix.net/health-news/contraceptive-pill/male-birth-control-026.html Can you imagine if this goes on the market? Will there be men saying "don't worry, i've had the jab" Would std cases rise any further? Could it ever be licensed (or forced on) to give to pubescent boys to lower teen pregnancies by a huge amount. Maybe even forced on repeated non paying fathers? But what about the other side, if they change their minds? It caused permanent sterility? What if the man developed cancer and wanted to have his sperm stored? Lots of questions.