And BTC has a real issue long term.
Not enough rewards for miners means miners will leave the coin and mine a better algo.
If you think BTC is going to go the way of that ETH scamcoin, you misunderstand the difference between BTC and every other coin, and why all the other coins are scams, but BTC isn't.
Satoshi wanted a electrical power to coin payment system.
He built it. It kind of works.
But i would argue scrypt has more staying power than btc.
I will be dead before that plays out. say 2060 I could be wrong but I think at 103 I will be gone and m8ners will favor scrypt over sha 256
The scrypt parameters are set at their lowest/simplest values by Charlie so that you could fit it in a GPU,
but he claimed it wasn't GPU minable and thus everyone CPU mined it for about the first year.
Alas for that time frame Charlie and his cronies GPU mined LTC until they released the GPU code for everyone else.
You'll find my argument with them about it back then here:
https://bitcointalksearch.org/topic/m.548778
https://bitcointalksearch.org/topic/m.545344
https://bitcointalksearch.org/topic/m.545360
Note that tenebrix was the precursor/setup/test for LTC that uses the same scrypt algorithm with the same simplest settings to fit in a GPU.
In there you will see them repeatedly arguing that GPU mining would be slower than CPU mining.
Basically a full on scam to keep everyone on CPU mining while they GPU mined.
... and of course scrypt is clearly GPU minable as it has been for over 10 years ...