I had previously doubted that Bitcoin would be replaced by another currency. But my mind has changed. Because I see there are many other cryptocurrencies that the developers are trying hard to solve the problems in cryptocurrencies. What about bitcoin? We don't know who are the developers and no effort is being made to develop it.
If you don't try hard, your rivals will win. Bitcoin's rivals will win too.
Yes, it is true that Bitcoin's competing coins will overcome it as there are many drawbacks with the coin but it will take a lot of years for the coins to do so. Being the pioneer of all the cryptocurrencies, Bitcoin currently has a market capital of $150 billion which makes it the most popular and most widely accepted coin in the financial market.
However, Ethereum, the second most popular crypto is gaining its acceptance much faster and has the potential to take over bitcoin. Since its origin in 2015, the coin has shown a tremendous growth by 1100% and now stands with a strong market capital of $73 billion. Also, not only as an investment asset, it can be used as a token for smart applications and as a platform for posting new ICOs. Hence the coin is more versatile and a great coin.