Pentcho Valev
2023-02-04 23:20:31 UTC
Brian Greene teaches ASYMMETRIC time dilation: The moving clock is slow, the stationary one is fast:
Asymmetric time dilation is non sequitur - doesn't follow from Einstein's 1905 postulates. The postulates, true or false, entail SYMMETRIC time dilation: Either clock is slow as judged from the other clock's system.
Why does Brian Greene abuse logic? Because SYMMETRIC time dilation, the valid deduction, makes no predictions. In contrast, ASYMMETRIC time dilation, the non sequitur, predicts TIME TRAVEL INTO THE FUTURE - the preposterous miracle that converted Einstein into a deity:
"The paradigm of the special relativistic upheaval of the usual concept of time is the twin paradox. Let us emphasize that this striking example of time dilation proves that time travel (towards the future) is possible. As a gedanken experiment (if we neglect practicalities such as the technology needed for reaching velocities comparable to the velocity of light, the cost of the fuel and the capacity of the traveller to sustain high accelerations), it shows that a sentient being can jump, "within a minute" (of his experienced time) arbitrarily far in the future, say sixty million years ahead, and see, and be part of, what (will) happen then on Earth. This is a clear way of realizing that the future "already exists" (as we can experience it "in a minute")." http://www.bourbaphy.fr/damourtemps.pdf
See more here: https://twitter.com/pentcho_valev
Pentcho Valev
Asymmetric time dilation is non sequitur - doesn't follow from Einstein's 1905 postulates. The postulates, true or false, entail SYMMETRIC time dilation: Either clock is slow as judged from the other clock's system.
Why does Brian Greene abuse logic? Because SYMMETRIC time dilation, the valid deduction, makes no predictions. In contrast, ASYMMETRIC time dilation, the non sequitur, predicts TIME TRAVEL INTO THE FUTURE - the preposterous miracle that converted Einstein into a deity:
"The paradigm of the special relativistic upheaval of the usual concept of time is the twin paradox. Let us emphasize that this striking example of time dilation proves that time travel (towards the future) is possible. As a gedanken experiment (if we neglect practicalities such as the technology needed for reaching velocities comparable to the velocity of light, the cost of the fuel and the capacity of the traveller to sustain high accelerations), it shows that a sentient being can jump, "within a minute" (of his experienced time) arbitrarily far in the future, say sixty million years ahead, and see, and be part of, what (will) happen then on Earth. This is a clear way of realizing that the future "already exists" (as we can experience it "in a minute")." http://www.bourbaphy.fr/damourtemps.pdf
See more here: https://twitter.com/pentcho_valev
Pentcho Valev