Then why should I look at IP/IS stuff? What's the payoff if it is just obsolete technology?
one could also ask the same question on martial art, any martial, in the age of gun and taser.
also, it depends on how you look at IP/IS stuff. is it an obsolete thing? or is it a foundational thing in human physical development where such knowledge was kept from the general public? like the secret recipe that grandma kept. as i said somewhere, there are things that the ancients knew but didn't bother to explain so we have to follow in their footstep in order to discover the information. if we think that because we are far more advance in technology we know better than the ancients, then we are very arrogant indeed.