Therefore, scalability is the key to crytpocurrency profitability and commercilization. In fact, I think all the other cryptocurrency attributes; security, privacy, anonymity, robustness, are meaningless without scalability. Additionally, the public will not use blockchain utilities like stablecoins if they are not as fast as Visa or MasterCard (NYSE: MA).
Saudi Arabia needs fast large-scale people movers because 2.372 million Moslem pilgrims visited the country for the Hajj in 2018, the Saudi government estimates. To explain, a Hyperloop could theoretically move millions of pilgrims to Mecca for the Hajj from airports all over the country.