The total supply of Bitcoin is 21 million most of which have been mined. The price of Bitcoin reached an ATH of $126k last year. If we evaluate it in terms of Bitcoin mining it is no longer in its early stage. But if we evaluate it in terms of value, Bitcoin is still in its early stage. As the supply becomes limited and the cost of mining very high the price of Bitcoin will increase. The cost of mining Bitcoin is increasing and the limited supply structure will be less than the demand. The price of Bitcoin will increase further in the future and is likely to reach $300k by 2028.
15 years is a long period of time. During this period Bitcoin has become a store of value, which means that many investors invest in Bitcoin as an alternative to gold. Bitcoin value is likely to increase much more in the future. If we evaluate it in terms of potential Bitcoin is still in its early stage.
I reckon it is not anymore early if also we evaluate bitcoin in terms of value. It was early when the price was under $100, under $50 or under $10 dollars. Presently? No! Bitcoin is not anymore early. If small investors similar to use wants to become rich with a small investment, we need to find a cryptocoin with a smaller market capitalization that has a very good potential to become very big!
Bitcoin has increased in value by a bajillion per cents over 18 years. Plenty of people got rich, some even became millionaires, from a relatively small initial investment. All of us who came later and are currently investing never will, not even remotely.
So does it really make sense to say Bitcoin is still in its early stages when it comes to value? Whether you look at price, market cap or adoption, it's already come a long way. It can still keep growing, sure, but that doesn't mean we're still early.
If anyone has a suggestion on a cryptocoin with potential, please share in this thread heheheheheh.
That's the million dollar question.

Hehehe yes, this is certainly why there are many of us small minnows who are asking what is the next investment in the cryptospace that will give similar bajillion percentage of profit from a small investment.
I reckon when the cryptospace was still early after bitcoin, the next that gave a bajillion percent for a small investment were Ethereum, Binance smartchain and Solana. However, if you ask the people today that we are not early anymore, they do not have the answer what will be the next bajillion percent investment heheheh.