It's also important to know what he means when he says long-term. If he means really long-term, I agree that the top coins like Bitcoin and Ethereum are the best choices. They might not explode, but they can grow steadily and probably will do exactly that. You could say that those coins are the least gamble of them all.
You must prepare for future explosions. top assets like bitcoin and ethereum in the long term will be poised to make a bang.
now we are growing but there will be a correction again. the momentum won't come for now. we have to prepare it for the long term.
what we need to do is to determine when we have to enter at the right momentum.
Well for Bitcoin as well as for Ethereum to really go for another massive rally will be hard. I mean I am talking about a several X rally. That would mean Bitcoin crosses the $100,000 mark and Ethereum crosses the $10,000 mark. A lot of money is needed to be poured into those coins to really push them beyond those marks. I expect quite a lot of resistance on the way there.