I was also curious to know how much time is left to mine the last bitcoin.
88% of all Bitcoin is good progress. There has been good work by the miners and the community all together.

That's right, someone will always try to present their version of BTC as something better than the original - but as far as I know (maybe I'm wrong) most previous BTC forks have not changed the total supply, and they failed in their intention (except that some of their creators enriched). While human greed should never be overlooked, it’s hard for me to accept that most would start following some alternative chain if someone promised them another let's say 21 million of new alternative Bitcoin.

Precisely. Too bad some folks just do not seem to understand that point and think that future Majik Machines will be popping blocks like making popcorn 

you are correct, most of them focus on things that are hyped up such as block size, block time, CPU mineability, ... and rarely focus on things such as supply. but there still are many that have also changed the supply. some examples of these shitcoins are: Micro Bitcoin (1000x), Classic Bitcoin (1000x), Bitcoin Smart (100x), BitcoinBoy (100x), BitcoinX (10000x), Bitcoin World (10000x), Bitcore (0.5x), ...

It's strange a bit that 88% of all Bitcoin were mined in 11 years. And now we have more than a century to mine rest 12%.

It's amazing what ideas come to people's minds when it comes to money, so while some may have just wanted to try out what it's like to have your own coin, some have caused quite a bit of confusion in the market in one short time. What the bad guys with BCH did was probably the closest thing a copy would ever get to the original - and maybe it was a good test and a warning to others to give up serious intentions to bring down Bitcoin.

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Satoshi had good reasons to do just that and not the other way around - and if you go back to the beginning of this thread and read my post, then you will find out that in the next ten years 99% of all BTC will be mined - and that one percent will stretch over the next 100+ years. A lot of things are marked with number 21, the total supply is 21 million, the number of blocks between halving is 210 000 and 1% of total supply is 210 000.

The mining speed will get longer as the supply of bitcoin that anyone can mine is depleting. Remember that we still have year 2140 before the last block can be mined and that block will be mined for more than 40 years. Yes the supply will run out but by the time that happens, a market that is perfect for cryptocurrency transactions is already established and the price is stable, though this is just a wishful thinking, the possibility will be endless.

Even if BTC mining is completed today, that would not mean that trading would no longer exist and that someone could no longer accumulate BTC. Even today with 6.25 BTC per block the total amount created in one month is 27 000 BTC which is very little if we take into account that there are over 18.5 million coins in circulation.

It is very important that everyone understands the moment we are in and looks at what happened 5 or 10 years ago - so that we can try to conclude what will happen in the next 5-10 years. Of course, there is no guarantee that the past will be repeated, but it seems to me that in a few years people will regret not investing today, just as some today lament the days when BTC could be bought for a few tens of dollars or maybe a few hundred $ back in 2015/16.

People today have two ways when approaching bitcoin:

• 1. Already a bitcoiner BTC- Keep on accumulating sats, find jobs that pay in btc, work for btc, sell goods/services for btc and so on. Ultimately, become a a master in keys/wallets management and don't leave anything behind as you might want to pass your btc wealth to your family members (or your cat, for what it's worth, I am not here to judge) 
• 2. Nocoiner, shitcoiner - First of all, unload your shit bag and go back to btc. Then follow point 1.

The road is paved for btc to succeed, so don't be left behind.