In this brief but rigorous examination of the concept of time-travel, it is clearly stated what time-travel would be, were it possible. It is thereby shown that the very concept of time-travel is incoherent.
©2016 John-Michael Kuczynski (P)2016 John-Michael Kuczynski
I focus on fiction, sci-fi, fantasy, science, history, politics and read a lot. I try to review everything I read.
I am interested in time and causality, so I gave this and a few other of this series a listen.
This is quite short (20 min) and self-produced (echoes due to bathroom acoustics?) Certainly don’t use a credit for this title (pay the $2.76).
This is not science but instead academic analytic philosophy, and weak at that. The author does not rigorously define key concepts (like time, object, or event), this makes what follows vague at best. Basically he defines and object as a causal sequence, then concludes that any form of time travel must either be disintegration and pure identical creation or not time travel but normal existence (forward or backward), thus time travel is a logical fallacy. Of course this is just definitional mumbo-jumbo.
Clearly forward time travel could (conceivably) be implemented by preventing any interactions (for some time) between and object and its environment and itself. This might not seem like real time travel, but suspended animation, yet it might get the job done. Such considerations also could illuminate exactly what we mean by time and object and time-travel.
General Relativity seems not to disallow stable time-like loops where an object interacts with past objects in a consistent way. This could conceivably cause a consistent causal loop. This is very boring time travel, but is interesting to consider. The author don’t not review any such cases.
I found this an enjoyable, if not enlightening, 20 minutes, but I could not recommend this series to others, unless they already have a firm science background, a light-hearted amusement with philosophers, and an appreciation of the absurd.
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