The existence of Bitcoin has shown me another dimension; will there ever be a second Bitcoin?
No, there won't be.
Bitcoin is Bitcoin,
There will be no such thing as second Bitcoin or anything else.
Even at that time, there were already many people making Bitcoin forks and others. However, in essence, Bitcoin is Bitcoin, and everything else is just altcoins.
Whatever the concept, whether it is exactly the same and the symbol is almost the same,, if it's not Bitcoin, then it's not Bitcoin, just altcoins, with a variety of different names. So, there will be no first Bitcoin, second Bitcoin, third Bitcoin and others. There is only BITCOIN.