Grandfather of all paradox!


Many times you want a do over! Just like a game! Life must have more than one life and a do over! You can start from the start!

You make a mistake in a level and then you go back and correct it as soon as possible!

The only way actually this will be possible is by Time travel!

But do remember that Time travel is not a simple thing because of something called the Grand father paradox or the fact that you MUST in no way meet your older self!

A consistent factor in most time travelling situations except maybe in TENET; is that you must not meet yourself of the past!

Another great paradox if called the temporal paradox!

A temporal paradox, time paradox, or time travel paradox, is an apparent or actual contradiction associated with the idea of time travel or other foreknowledge of the future. Temporal paradoxes arise from circumstances involving hypothetical time travel to the past. They are often employed to demonstrate the impossibility of time travel. Temporal paradoxes fall into three broad groups: bootstrap paradoxes, consistency paradoxes, and free will causality paradoxes exemplified by the Newcomb paradox!

Now the other paradoxes are little complex for my small brain but I am particularly interested in the Grandfather paradox!


It is also called the consistency paradox and this occurs when the past is changed in any way.

The paradox of changing the past stems from modal logic: if it is necessarily true that the past happened in a certain way, then it is false and impossible for the past to have occurred in any other way, so any change to the past would be a paradox.

So effectively a Consistency paradoxes occur whenever any change to the past is possible.

A common example given is a time traveler killing their grandfather before their parents’ conception, thus preventing the conception of themselves. If the traveler were not born, they could not kill their grandfather; therefore, the grandfather proceeds to beget the traveler’s ancestor who begets the traveler.

This scenario is self-contradictory. One proposed resolution for this paradox is that a time traveler can do anything that did happen, but cannot do anything that did not happen.

Another variant of the grandfather paradox is the “Hitler paradox” or “Hitler’s murder paradox”, in which the protagonist travels back in time to murder Adolf Hitler before he can rise to power in Germany, thus preventing World War II and the Holocaust. Rather than necessarily physically preventing time travel, the action removes any reason for the travel, along with any knowledge that the reason ever existed!

Physicist John Garrison et al. give a variation of the paradox of an electronic circuit that sends a signal through a time machine to shut itself off, and receives the signal before it sends it!

Paradox or paradoxical is actually when all this makes it very confusing! You can’t even laugh! Of course if you do want to laugh then check out the spontaneous humor of Mandar Chandwadkar!

A quick blog and sketch during a cross country and cross continent travel!

Shubh ratri!

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