If you could design/build/discover anything at all, what would it be?

Question: If you could design/build/discover anything at all, what would it be?
- Keywords:
  build,
  design,
  discover
Asked by anon-336315 on 13 Oct 2022.
- Tom Louth answered on 13 Oct 2022:
  
  My girlfriend is always asking me to design a teleportation device, and it would be very useful. So probably one of those.