Now the mainstream currency, BTC-ETH, has the upper hand, and they have the strength and technology, but the future is likely to be a new project to replace them more mature and more comprehensive. What do you think it would be?
I do not think that in the next few years there will be such projects that will be better than bitcoin and ETH. These coins are already very popular around the world, and new projects will be very difficult to attract people's attention, even if it will take a lot of time or may fail.