We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Since our physical fitness posts here are oriented towards building and maintaining general functional fitness and athleticism, we tend not to get into the weeds of strength-building.
For general conditioning, we view strength (weights) as about a third of the program. 2 days/week, with heavy powerlifts etc. However, the strength component is crucial even if 2 hrs/week will not produce an Arnold physique.
Speaking of physiques, we are genetically programmed for a body type (even if we cover that up with layers of fat). Certain body types were built for running, some for lifting up dead mastodons and elephants, etc. One aspect of that is our muscle cells. We are born with a life-long number of them, and a predetermined distribution of Type 1 And Type ll muscle cells which in part determine where our athletic potentials might be. Strength-building can build up the fibers inside those cells when subjected to serious demand. At the same time, a significant part of muscle bulk is blood supply.
But getting to the point, the rapid improvement in strength during the first 6-10 months of lifting is attributable to neuromuscular development and efficiency. That's the first step in strength conditioning, and when progress is most gratifying.
After that initial phase, progress slows and that is when the real slogging begins.