It is a primary goal of artificial intelligence research and a common topic among science fiction writers and futurists.
[5][6][7] Mind uploading may potentially be accomplished by at least two methods: Copy-and-Transfer or Gradual Replacement of neurons.
Alternatively, the simulated mind could reside in a computer that's inside (or connected to) a humanoid robot or a biological body.
[16] Its main component is a ribbon-like cable (also called a tether) starting at or near a planetary surface and extending into space.
However, recent concepts for a space elevator are notable for their plans to use carbon nanotube or boron nitride nanotube-based materials as the tensile element in the tether design.
The tether is rotated from a heavy orbiting vehicle such that the far end, weighted with a docking station, periodically enters Earth's atmosphere.
A light sail could use sunlight to achieve interplanetary travel without carrying large quantities of onboard fuel.