Star Trek: 11 Incredible New Technologies That Were Immediately ABANDONED
10. Transwarp Beaming
In Star Trek Into Darkness, John Harrison aka Khan casually renders all space travel obsolete. This would seem like an enormous tactical advantage to anyone who got their hands on this technology so when Montgomery Scott is seen holding Khan's device, it is a good day for Starfleet.
Unless, that is, you're near Starbase Yorktown.
The invention of transwarp beaming, allowing the user to move between star systems in the case of John Harrison, was revolutionary. Rather than relying on cumbersome starships to get from point A to point B, it could now be achieved as easily as moving between transporter pads. This technology seemed to be a critical advancement that should have been implemented throughout the fleet.
In Star Trek Beyond, Starbase Yorktown is cut off from the Enterprise via the Necro Cloud. With a handy transwarp beaming device, that Cloud would mean nothing - meaning no one on the Enterprise needed to die, as usually happens within about three minutes of a mission beginning. Instead, the tech was seemingly shelved after Khan capture and the dead bodies began to rise.