What will the miner do when 21 million Bitcoins is mined?

[Wind_FURY]

Miners are throwing rigs in the bin
https://www.zerohedge.com/news/2018-11-20/whats-happening-now-crypto-devastation-collapses-hash-rate-forces-miners-dump-rigs

Are you sure this 20 million number will ever be reached because I am not

Hahaha. In every Bitcoin crisis, there is always someone saying that "Bitcoin is dead".

Those miners were losing money. They made the correct decision.

Shit-Code it was and intended to create CPU wars all along, game is all but over after fees hit $55 per transaction

What shit-code? Bitcoin is maintained by the best developers, and of people who deserve to be the stewards of the network.

Can you name a better team of developers?

 and since
then the price has been falling but keep "Buying on the dip" if you cannot read the writing on the wall

Of course the price will keep falling, the bulls of 2017 kept the price surging artificially. This is an opportunity to "buy low".

[lamadu3]

It is quite obvious that the miners, creating bitcoin mining farms, were aware that the time would come when the last bitcoin would be mined. But by that time their equipment should not only pay off, but also make a profit. In the future, most likely the income will be received from the transactions with the coin.

Certainly, they will simply stop mining and start doing something else. I will not be surprised if today, many of them are thinking about becoming traders. Probably, certain guys will open their business.