Boosting transactions speeds, hard forks, and bolt-ons, like the lightning network with atomic swap capability, are all well and good, but try and explain this to someone in their late fifties who first posted on Facebook in 2017, and youll see the problem.
We already had several hard forks with different kinds of retards staying behind them which only used it to wash the market cap of BTC and cut their own piece of cake. Now can you please point at the point that boosted cryptocurrency adoption?
Each technology uses a different frequency range, so why doesn't your smartphone need several separate antennas, one for each frequency range?
For now, the usability of the technology of cryptocurrencies if far behind the usability of mentioned Visa. Why should people use cryptocurrencies?