Ubo Augustus Autistus Maximus - afgelopen zaterdag om 21:15
@Esmée Are you familiar with space-time diagrams?

Esmée - afgelopen zaterdag om 21:16
Not really

Ubo Augustus Autistus Maximus - afgelopen zaterdag om 21:17
Doesn't matter
So let's pretend that we only have two dimensions instead of the regular four: one dimension of space and one dimension of time
I'm going to assign space to the y-axis and time to the x-axis, so that you get something like this:
https://i.gyazo.com/efa2ce7aa9d2519149c80fb97d82bb9f.png

Prophet of Apocalypse - afgelopen zaterdag om 21:18
#flat-earth-debate restarted if you're interested.

Esmée - afgelopen zaterdag om 21:18
Yeah I get that

Ubo Augustus Autistus Maximus - afgelopen zaterdag om 21:18
So, let's now add an apple or whatever to our diagram
https://i.gyazo.com/f1ca557b7285425b4a592c2f0ee60ddb.png
Like every other object in the universe, the apple merrily moves through time
Of course, it's position doesn't change, because there isn't a force acting on it, and this is represented by its position over the y-axis remaining constant
But the curious thing is that the 'grid' which everything moves along isn't always flat, even though we perceive it to be that way
It turns out that energy (and therefore matter) is able to curve this grid, or space-time as it is called in scientific terms
This means that our diagram ends up looking something like this
https://i.gyazo.com/5a7bc6d6c172944733758efae76f5e90.png

The apple still moves through time in a straight line, but because space-time is now curved, it dives under the x-axis
Because we perceive the graph as always being straight, this is what we see occurring:
https://i.gyazo.com/c4d8243f16577ee7f69152f0a9f33e98.png

You guessed it, the apple is falling down
This is in very simple terms how gravity works