A world without flash…
Evilness is out there
There is evil stuff around the web: adverts, click counting, measuring stuff, badly developed slow scripts… – all this makes the web experience worse. But those things would also exist if there was no flash. And at the time being it’s easy to block most ads with a simple flash blocker, because most ads are made with flash (hey, it’s easy and it tweens!). Simply unblock the few real flash apps you need and there you go with a “fast” web. Would it be as easy if there was only javascipt? How to separate the good scripts from the bad? Just pick one of your favorite web portal pages and inspect all the scripts that are included from lots of different sources that mess with the dom and the global namespace at this very day. You’ll get a headache (and so does your browser).
We’ll get what we deserve
There’s only one thing I assume for sure: Whatever programming language will be “the winner” in the future, we’ll get our ads and scripts and they’ll make the web slower, kill your battery, crash the browser and make everything insecure.