Buy bitcoin.
This is the best recommendation that you will here from everyone if you're really for the long term. You're at the right hands if you're going to choose bitcoin before any other altcoins.
It's a saver for everyone's portfolio when most alts are down.
bitcoin being the best for buying friends. but the author only suggests altcoins. maybe the author wants to tell a special altcoin coin for the long term not from bitcoin.