You're repeating tired quotes without even understanding what they mean. The quote "longer than you can stay solvent" refers to short selling. Here you are using it in the opposite context: to describe a long position. It makes no sense. How exactly would a non leveraged long position get margin called?
I think this comes down to a disagreement about what "long term" means. In finance, I would suggest a _lower_ bound on long term is 10 years. More comfortably, I'd suggest something like 20-30 years. This is long enough to ride out most depressions, and it is still fits within a persons working life-time. It also roughly matches the scale at which people should be planning for retirement and long-term care (imagine if you started your retirement planning just 10 years from retirement, it would be very difficult). So I think neither BTC's not TSLA's hype has reached long-term yet. They have been around long enough to meet some of these timelines, but the excessive hype really hasn't been so long -- maybe 5 years or so.
Can we stop just repeating quotes like those over and over. If you have thoughts, please articulate them, its pretty frustrating to see the same exact quotes repeated over and over whenever there is a submission stock related