Everything about all the ledgers and the difference between transaction speed versus settlement speed you can read about in "Broken Money" by @Lyn Alden. It is also the first printed book I have read mentioning Nostr.

"A Functional Approach to Java" by Ben Weidig is so far the best book about Java I read in 2023.

All anarchocapitalist Bitcoin entrepreneurs should be aware of the quintessence from "The Arsonists" by Max Frisch: It is useless to be nice to an arsonist because in the end he will do what is his nature and this is burning down houses. Hence playing nice with bureaucrats and regulators is also futile because in the end they will do what is in their nature and that is castrating and destroying your business. Anarchocapitalist are following natural law.

I really like chapter 13 from "The philosophy of Bitcoin" by Álvaro D. María. It only contains the word "nothing" and is the answer to the question what the states can do against Bitcoin.

A majority of reachable bitcoin nodes are running through the Tor network, but there are still "crypto companies" like Bitrefill that somehow think that using IP addresses is a reliable practice to detect where their users are located :-(

I learned some interesting details about the Vikings and modern time speculators while reading Fraudcoin by @Rune Østgård

Winning without a bloody battle is the highest competence according to "The Art of War" by Sun Tzu. That is what UASF did on August 1st 2017.

The "problem" with Bisq is that it is a hodler square in the first place. If price is down no one is stelling near that price ;-)

@Relai Alex are there plans to open source the Android client app of Relai so that the app can be easily installed on a degoogled smartphone? Threema and ProtonMail did the same.

Read about a lot of space-related and philosophical ideas in this book "Abundance Through Scarcity" by Ioni Appelberg.