"If you think BTC could be a currency for the developing world, what happens when the population increases 50% but the amount of currency can't be increased, and the amount of transactions and therefore speed of circulation of currency is fixed"
..
There are only 21 million (21,000, 000) bitcoins in existence, (approx 19 million have already been mined).
BUT
These bitcoins are currently divisible to 8 decimal places to units called satoshis (think pounds and pence, only rather than just two decimal places, you have 8). So there are 2.1 quadrillion satoshis (2,100, 000, 000, 000, 000) in existance.
The lightening network allows you to transact in sub-satoshi units = millisatoshis which are worth 1/1000th of a satoshi. So there are 2.1 quintillion milli-satoshis (2, 100, 000, 000, 000, 000, 000)
There is really no reason why you would need any more precision than 2.1 quintillion units of currency.
Even if you did - they can still be subdivided.
This thread is depressing, embarrassing even.
This is the most amazing technology, which is going to revolutionise the C21st, and people are still on about bloody tulips.
Its not about money. You just dont see it yet, but the people who get bitcoin understand that, money is just a by-product, this is about truth and justice, governance and internationalism, energy creation and resource distribution. Bitcoin is borderless, permissionless, neutral, public and censorship resistant. I can sent it to anyone, anywhere in the world in minutes directly, and no one at all can stop me, and that transaction will forever be recorded in a public ledger that anyone can view and that can never be deleted. Dont you see how powerful that is?