How about the fact (yes fact) that removing or reducing inspection time biases certain solving methods? Do we not encourage people to try new things and learn new things about the cube?
To me, these two sentences are extremely pertinent.
Reducing inspection time is likely contribute to the dumbing down of cubing. The most thoughtful (mentally challenging) aspect of a speedsolve is the inspection. By reducing it, speedsolving will be biased towards less thought intensive methods.
I do think having a significantly shorter inspection time, or eliminating inspection altogether, would give cubing a much higher credibility factor amongst non-cubers and could help us become much more of a "mainstream" sport.
Inspection allows lookahead to take place right from the beginning, allowing the solve to flow quickly from the outset, without pauses. With no inspection, solves will look slow and hesitant at the beginning. I believe this poses a greater risk for the sport's interest amongst the mainstream.
Imo it's analogous to snooker, where before each shot a player will plan much further ahead than the current play. A non-snooker player would ask 'why is he waiting so long before taking a shot?'. That doesn't make the sport less mainstream, just that non-snooker players (and non-cubers) are ignorant of the technique involved.
I personally think that pre-inspection makes minimal difference to attracting more people to cubing. Media and popular representation of the puzzle is far more of a hindrance.
I think this is a good analogy. What an expert does during inspection is a very involving and skilled part of the solve. It serves to separate the experts from the intermediates. The fact that outsiders don't understand it is unlikely to reduce their respect for the sport. If anything it promotes further intrigue. I've never been able to fully explain my thought process during EOLine to non-cubers, but I doubt my inability to do so has turned them off it. If anything, it adds to the depth and variety in the sport.
Anyway 15s isn't a long time.
It certainly isn't! After a year of doing EOLine, I still struggle to plan all of them within 15 sec. Reduction to 10 seconds would be disastrous for ZZ, I think to the point that it would be difficult to be competitive with it. ZZ is an exciting new method with huge potential for development and some really interesting systems for the last layer. Losing it would be sad for the community.
Finally, if no inspection is to be seriously considered, then why not create two speedsolve categories: One with, and one without inspection (even if its just for a trial period). I don't think reduction to 10 seconds should be considered, since it will unfairly disadvantage some methods more than others. Either the solver is allowed to plan the first step or not. I.e, there should be a full 15 sec or none at all.
EDIT: Ninja'd ...
There was once an event called "Rubik's cube no inspection", so maybe we can bring that back for the people who don't want to inspect.
I am actually in favor of raising the inspection time. It's your choice if you use it or not.
I like this idea.