Necro thread....why not??

For grins, I clicked on page 6000 and something and noticed we've been asking the same questions about different knives for over 20 years.
1980-2000 seemed to be the time where companies were still coming out with "oh my gosh that's never been done before" and the last 20 years
have been improvements and refinements on those things. Sebenzas, for expample, aren't radically different these days, but definite improvements have been made.
Seems like marketable success is more about satisfying the spice of variety than it is major improvements and revolutionary advancements.
A lot of the new stuff I see is more for novelty in and of itself rather than any real advancement.
I see lots of improvement in trying to make folders fixed blade strong, but that's never really going to happen.
I see better attempts at making a knife the ultimate self-defense weapon, but that's never really going to happen either.
For self defense, I think your brain, distance, and a cell phone are some of the best things going.
I don't see how the human race could get along without cutting implements, but I often wonder if knives are actually "improved" or if
companies simply need to make new things simply to keep sales up. I appreciate companies like Spyderco and Chris Reeve Knives that make changes
based on practical improvement and timeless, generally agreed upon aesthetics as opposed to "flavor of the month" gimmicks.