Abstract
“One way to think of physics is indeed as a (large) set of (complex) mathematical laws of (abstract invisible) dynamics. These (many complex abstract) laws provide (questionable) predictions by carrying (many abstract) conditions at one moment of time supposedly into the (abstract) future. But nature has provided us with only one real observable self-evident phenomenon that is unquestionably real and that is vastly more useful in its singular aim and sole intention.
Joe Fisher