250 million sperm cells when a guy ejaculates

250 million sperm cells when a guy ejaculates
2.5% chance per sex act to get pregnant.
Chance for just you to have been born when your parents had sex: 0.025*1/(250*10^6)=1*10^-10
Or 0.00000001%

Now imagine if the ejaculation happened a nanosecond sooner or later, you probably wouldn't have been born.
Imagine if the angle was an arcsecond different. You probably wouldnt have been born.

Now, if you went back in time and killed Hitler, your parents lifes WOULD be different, even just slightly. And YOU would not have been the selected sperm.
So if you go back in time and kill Hitler, you would "kill" every single person born after ~1925 (when peoples lives were first changed in some, albeit small way, because of Hitler).

This is not far fetched at all, and quite logical, which means IF time travel is invented in the future, it would immediately be made illegal, because going back and saying "Hi" to a casheer, would probably affect the exact angle and nanosecond they got pregnant at, which would "kill" someone in the future.

Therefore, we can conclude that, with a rational non-evil government:
1. Time travel will never be allowed to happen
2. Time travel devices can never be so small that they can be activated/used without a government knowing

>Going back in time and killing Hitler would replace every single person born after 1920, essentially killing them

Attached: adolfhitler1930.jpg (241x315, 12K)

Who cares what it changes in that timeline? It won't affect anything in your original timeline, so I dont see any reason anyone would stop you.

Entropically, that time travel is identical to recalling a system state of our universe at that time and injecting you in it to do as you please. There's no reason anyone would regulate it.

So you are saying that by killing Hitler, all the jews were killed??????????????????

So any infinitesimal change in the past will change the present?
Of course. Bradbury's "A Sound of Thunder" grossly underestimated things. The outcome of an election changed.
Read William Tenn's "Brooklyn Project".
Of course, no one remembers things ever being different.

You're also assuming that aliens never discover time travel either and that they ALL have rational, non-evil governments which can absolutely prevent time travel.

Easier to conclude
3. Time travel (backwards) is impossible
End of problem. No loopholes.

I remember my first time learning the butterfly effect

Why would I kill Hitler?
I would beg him not to fuck up at Stalingrad.

That depends on wether time is indeed linear or if there are multiple timelines

He's saying an infinitesimal change in the past on Earth changes the present on Earth. Changes on other planets would take light years to change the earth at all, and even then it would be incredibly minute gravitational wave differences that likely wouldn't affect anything on Earth anyway.

what if i travel back in time, kidnap every nazi soldier, bring them to the year 2018 and let them blitzkrieg your mom before i send them back to stalingrad?

god I wish that was my mom