Clearly NASA's Apollo programme would have been more of a success with only one or two people executing it. Or the Large Hadron Collider. Or the Linux Kernel (a

Clearly NASA's Apollo programme would have been more of a success with only one or two people executing it. Or the Large Hadron Collider. Or the Linux Kernel (and no, that's very much not the work of one person). Or anything else of any real scale or import.