He literally explained LN in that post with "there needs to be a secondary level of payment..." In other words he was referring to LN banks over the LN as I described here: https://darthcoin.substack.com/p/bitcoin-private-banks-over-lightning extended with ecash if you like https://darth-coin.github.io/wallets/bitcoin-adoption-using-ecash-en.html What Saylor wants is something else. He want to do exactly what banksters did with gold: give me your valuable sats and I will give you in exchange the endless printed fiat.
Hal also referred to fractional reserve and interest rates if you read that whole post in the screenshot. Here’s the specific section on that 🤷♂️ https://m.primal.net/Ldmm.jpg