The sad thing is that I have had to learn scores that look close to that Suresh. However they are supposed to be playable. I've actually studied in scores that are so hard that the composer says bravo to me when I was forced to fake a bunch of it. We are talking about super modern contemporary music that no one would recognize and most would freak out if they heard it.

On the other hand I usually learned to play stuff that the conductors would openly say "That it is just for effect" and "You don't need to play all the notes." Boy did I ever waste time.