Try to spell these words out "mind muscle connection". Once you got that you could built a decent physique even on a bowflex
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You're truly an arrogant little kid to presume to know more than Dobson, all the while having nothing more than a swimmer's bod and absolutely no evidence of knowing anything.
Get back on your Gazelle and get to work, kid.
Start by learning english, it's "build", not built. And it's mind-muscle connection with a hyphen, dumbass.