* ledger block -> ledger segment
The book already defines a *block* to be a slight variation of
how block-based changes define it. It's the thing the cluster
confirms should be the next set of transactions on the ledger.
* Boot storage description from the book
Previous version talked about concurrency, which is described
in detail in the Anatomy of a Fullnode chapter. App developers
probably don't care that their programs run in parallel with
other programs. From their perspective, there's no difference
between 10x parallelism and a 10x faster CPU.
Greg Fitzgerald
Rob Walker