Are we certain there is a moment before that date that every single one of the ~6 billion people isn’t mid jump?
Maybe we can amend the definition of “on Earth” to “inside the atmosphere” for purpose of that tweet
How far does “the atmosphere” go? Because technically the ISS is in the thermosphere, which is part of Earth’s atmosphene.
Yeah, but if you were born after 2000, you’d be too young to even appreciate that fa… fa… …fuck, I’m old.
There were people born after the year 2000 that are allowed to vote. I’m not standing for this.
But how many of them are actually going to exercise that right? Hopefully lots but history shows that usually isn’t the case.
Where is the line between “on Earth” and not? If you’re orbiting the planet does that still count? Do you have to be below a certain altitude? Certainly flying in an airplane isn’t enough to qualify as having left Earth. Is it leaving the earth’s atmosphere? Is that even something with a precise enough definition?
I guess what I’m saying is we should exile Elon to Mars and then start the timer.
It depends upon the definition of “on”, I suppose.
If jumping or falling count as not being “on” earth, the fact is not true since there is (a) almost no chance with so many people that one person (probably a child) somewhere wasn’t jumping or falling and (b) we can’t definitively prove things one way or the other with regard to (a).
If we do say “OK, human-body-powered times not in contact with earth don’t count” (assuming the human is responsible here for cases where they fall, for simplicity), we would have to move on to vehicles. Driving a vehicle that contacts the ground seems pretty “on earth”. I suppose boats would as well. What about planes, thought? They’re definitely “in the air” when they’re not “on the ground” (I’m sticking with English here since the post is in English; we could open another can of words worms for other languages).
So next we have to say “things flying in the atmosphere don’t count” then we have to either define atmosphere or define an arbitrary line of Xkm above the average surface of earth. In the case of the former, how much atmosphere counts as atmosphere?
I guess we could move on to gravity well after that.
define atmosphere or define an arbitrary line of Xkm above the average surface of earth.
100km. Atmosphere is a gradient so yes it’s entirely arbitrary.
If a person fell into the singularity of a black hole that had particles from our atmosphere, are we back to on earth again? (My vote is “s/he dead and no even if not”, but I think it’s interesting to think about).
It’s pretty easy to draw a line at orbit at any altitude. If you are staying aloft by moving fast enough that a straight line in the planet’s gravity well forms a closed ellipse, or faster, that excludes jumping (and every other sorry of suborbital movement), flying, floating (on water or in air; nothing we have made our can imagine can float on air)
Orbit is different to everything not orbital in a more significant way than other modes are different to each other
I think you can even word your way around how flying is on Earth, in that you’re supported by the gaseous part of Earth, just like a boat is supported by the wet part of Earth
You cannot get out of Earth’s gravity. Gravity stretches out to the edge of the observable universe though it gets pretty weak outside the solar system
For NASA and the U.S. military, for example, space starts at an altitude of 50 miles (around 80 kilometers), according to NOAA. However to the international community, including the Fédération Aéronautique Internationale (FAI), space starts a little higher, at 62 miles (100 km), at the Kármán line
Is it a factoid or is it a fact? Because the two are mutually exclusive.
I haven’t heard of dead people coming back to love on October 31st 2000 for one day only
