What is BLAKE3?
Even if I use a big fan from the use of BLAKE3 to hash, it is not possible to use it in a very advantageous way everywhere. What kind of thing is always what you have to question as a programmer. In the case of a product, the following conditions are met.
the syncing means that it uses (I think) a different distribution protocol than classic IPFS, but it's still content-addressable. (For instance it uses #blake3 hashing so you can incrementally check the integrity of big files) https://github.com/n0-computer/iroh