Whats the point in reading thousands of pages of documenation for an ephemeral and constantly changing project? In order to justify deep dives, the software its

Whats the point in reading thousands of pages of documenation for an ephemeral and constantly changing project? In order to justify deep dives, the software itself has to be stable enough. I plan to read the entirety of the ANSI C specification for instance; it is a justified endeavour because ansi C is a stable standard with compilers implementing it for a long while. For a constantly changing project of course documenation is still important but it should be more geared toward quickly cluing you in on the specific part you are interested in, and hopefully make diffs easily presented and available.