A vaguely realistic and scientifically possible idea

would be to use time travel to speed up time,

so hair growth would appear to be speeded up.

.

That might sound ridiculous, but it is a fact that WE ALL time travel,

all the time.

Travel fast and time progresses at a different speed.

Jet pilots and astronauts come back to Earth a few nano seconds younger than the rest of us,

and that's from travelling at a relatively slow speed,

compared to the speed of light, like Mach 3 in a jet, and .... copy/paste:

Fastest Person Alive - Progressive Rocket Flight / Space Record:

1968-12-21 - Apollo 8 - Anders, Borman, Lovell - 10,807 m/s during trans-lunar injection.

1969-05-26 - Apollo 10 - Cernan, Stafford, Young - 11,107 m/s at 122 km altitude during re-entry.

............................ &

How much time dilation do astronauts experience?

Those aboard the International Space Station (ISS) are orbiting Earth at 17,500 miles per hour.

That's almost 5 miles every second!

Astronauts returning to Earth after 6 months on the ISS will have aged slower than those on Earth,

but only by about 0.005 seconds.

10 Jul 2022