You forgot that a digital money can be divided into any number of decimals and the current 8 decimals is NOT a final thing. It means, with the current supply, you can serve any number of world population. I guess the time has arrived for innovating a new unit which is smaller than he current unit 'satoshi'. Multiple topics for this had been discussed here. Let's wait for what bitcoin devs will bring on table.

Will value over the time? I agree but after how long? This is the reason, supply of bitcoin is capped.

It is not even about believing bitcoin supply is one of the major reasons why it is getting this rate of adoption, aside the other reasons that gives people freedom own it like they want unlike fiat, bitcoin been a limited is why most people are cherishing it as an asset. Look at gold and other mineral resources their limitation even though not as confirmed as bitcoin is why they are been invested in. This supply limit is part of the reason why bitcoin bull run is usually after the halving, because with the halving period happening it is signaling that bitcoin supply from mining is drying off.

As for if it will be enough? I think as a currency bitcoin 21 million supply is simply more than enough, at the current ATH we do not even use a bitcoin for transaction but rather some thousands of satoshi, now should bitcoin get to $1m then satoshi can be also be spread out. But the major thing is bitcoin right now is been treated more of an asset that’s why most institutions are holding. In the future it will be hard to get a hand on it that’s why the best time to invest is now

I believe we are still on the same page with Bitcoin's limited supply being the same reason people cherish it, and also as the reason why Satoshi invented it with a limited supply, because when the demand for it keeps increasing, the price for every sat increases as well, making it a much valued asset to hold onto.  Little wonder nations decided to make it a national reserve because they know that in the future, the price would skyrocket when the whole world fully adopts it and looking at the current world population, if every one person holds a fraction of it, the price for 1 btc might be much higher ythsn it is now making it a treasure asset than gold to say. Obviously, the best time to take a spot as a bitcoin holder is now.

It is what it is.  If the limit wasn't there it wouldn't be bitcoin, it would be an alt and it might as well be the Euro or Dollar or some other infinitely inflatable currency. 

Its limited supply is what makes its valuable and that is the unique feature Satoshi added upon all the technological ideas that follows Bitcoin. Deep into the feature, the value of every single fractions of Bitcoin will hold a valuable price, and that will make it remain valuable no matter how long it goes. 

I am happy that you figured this out by yourself, and if I am asked, I would say that the 21 million BTC total supply is even too much, the lower it is, the more the law of economics on demand and supply over the price would be enforced. The goal of the 21 million supply was to create scarcity, but till now, the effect has never been felt because you can easily get your Bitcoin today. I wonder where the price would have been if it were difficult to get Bitcoin and everyone held on to their Bitcoin.

That will naturally create more value!

Yeah, it is more than enough and we do not need anything more. I understand people may react like we are dealing with something that "will not be enough", but it will be. From miners to investors to traders, we are not going to mean anything at all. So, we have to understand why this is a bigger deal.

21 million is limited, sure it could have been 2 million or 200 million, the number itself is not the point, the point was the fact that we are not going to print more. That is a way to prevent inflation and as long as we have that, we are not going to need anything else. Too many people think that "it's not going to be enough" because they lived in a world where money is printed all the time, but the if you can see the benefit of this, you will get better results.

By the time we run out it can be brokered by 3rd parties into smaller amounts to keep the currency going without even changing the code.

Many people are so obsessed with bitcoin's scarce supply that they think it's the great thing that makes bitcoin successful but they don't know that creating shitcoins with a finite supply has never been harder.

Indeed, for an asset to have value, it must have a use case, utility, supply…the value of an asset does not depend on or be determined by any single factor. Supply is just one of many factors that determine the value of bitcoin, not the main factor as many people think.

Like gold, it has a finite but very large supply but in return it has many utilities, use cases and the large supply only makes it more valuable instead of depreciating.