What is the meaning of life?

Let's start with the humans. The sole purpose of human life is to produce plastic, the earth couldn't do it on it's own so it created humans to do it.
All other lifeforms are just failed attempts to create an organism that should have been able to produce plastic. They are just worthless biological waste.

Knowing that other questions arise:
Why does the earth need plastic?
How much does it need?
What is the purpose of the earth?
Is the earth a thinking being?
Who created the earth and why?

If there is a higher being who created the earth so that it could produce plastic through humans, why didn't create that higher being just plastic in the first place?

The thing is, producing plastic is not the primary purpose of the humans anymore. Our creators found us humans so damn funny that they made an intergalactic freak show starring us humans broadcasted all over the universe.
That is the reason why they installed the Van Allen Belt, so no human could escape, find out everything and possibly ruin the fun for everyone.

Our lives are so pointless and funny, they just had to do it.
We are just smart enough to notice that something is not right, but we are too stupid to think out of the box and that is just hilarious.
In the meantime we do all kinds of stupid things like killing other people for paper money.
Some of us even work themselves to death not even for paper money but for an integer variable that is administered by a bank which has a worse encryption algorithm than some Pay-TV broadcasting stations.

There are some technical difficulties of course, but those were solved a long time ago. Every time the human race develops it's technology or it's mind to a certain level so we could find our own answers to the great questions, or just enough so that the intergalactic freak show could become boring
there is a RESET.

Every 50-100 years there is a small reset, at that point most people lose everything they worked for and that is just funny and convenient at the same time because it slows down the technological and mental development.
The wars we humans get ourselves into, fought by those individuals who understand the least about what is actually going on, are critical.

Then every ~2000 years there is a WIPEOUT where almost everything concerning the human life has to start over again. Think of it as a new season where the humans are thrown back to the stoneage. This has to be done otherwise we could become a threat to our owners.
Our search for the truth starts all over again. In that period the history of the preceding civilisations is being deleted from the minds of us earthlings.

That whole process repeats itself endlessly until the human freak show will hopefully be canceled.
Here you have it, stop searching for an answer because even if you find it you wouldn't understand it or you would be very disappointed.