"In fact, it is not used much in the legal economy now. Yes, a rich man sells it to another rich man, but this is not the end use. Without these uses, it has no long-term future. ," Rogoff said. In other words, Bitcoin currently exists almost exclusively as a speculative tool.
So, is the Bitcoin bubble about to burst?
Well, nowadays bitcoin is more an inversion tool than a coin to use day by day... Transactions aren't cheap at all, so you can't use it to buy simple things like a coffee or a beer, it's possible to do it, but if you try you will end paying more in fees than the product price.
And another problem that bitcoin has for 'Practical uses' is the confirmation time. This nemesis is a big problem for bitcoin, and people still searching for solutions. The LN could be the best solution for this.