The Shield Of Time, 1987 A. D., pp. 26-33.
Manse Everard speaking to Wanda Tamberly lists modern discoveries that point towards the eventual invention of space-time vehicles:
non-inertial reference frames
quantum gravity
energy from the vacuum
laboratory violation of Bell's theorem
wormholes in the continuum
Kerr metrics
Tipler machines
Anderson has T-machines in The Avatar and energy from the vacuum in Starfarers. The latter might answer Tamberly's question about where the energy comes from for time travel. There have been further developments in physics since The Shield Of Time.
Once on TV Tipler suggested that time travel would require a transmitter and a receiver. Thus, it would be as impossible to travel to a time before the construction of the first time machine as it is to telephone someone on an island where there are no telephones. But maybe a superior technology would be able to transmit a beam that caused air molecules on the island to vibrate...
1 comment:
Kaor, Paul!
I'm most familiar with Dr. Tipler by how Anderson used his work in THE AVATAR and from reading the former's book THE PHYSICS OF CHRISTIANITY.
Ad astra! Sean
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