The science of blade sharpening goes all the way from spitting on an arkansas stone and slatherining
you blade around to "we're going to Mars" technology.
Almost anyone can get a blade reasonably sharp with the simplest of abrasives if they.....
Keep the abrasives clean.
Hold a consistent angle
Chase a burr
Strop to finish.
Making blades and sharpening them takes some time and effort to get good and good is a never ending
progression to great (which few ever achieve)
There are plenty of makers and users out there way past my skill levels, but I have found a relatively
comfortable level for myself and intend to still make personal improvements but not loosing sleep while
on the journey.
Have fun and get proficient enough to please yourself, then.........