I started creating my first browser because I wanted to explore new ways to (re)discover useful/interesting/entertaining/etc webpages without relying on central services. I am still actively exploring that, but in the process I got fed up with the state of browser engines and wanted to push The Web to be better!
The world is waking up to the privacy problems of The Web, and mainstream browsers are tackling them in ways that are inherantly whack-a-mole. Because they cannot afford to break popular webpages, for which I cannot begrudge them.
Because even without escaping it's sandbox, it regularly does great harm to users' bandwidth, battery, and privacy.
Text can be read through visuals, audio, or (e.g. Braille) touch. And any input device with at least two or three buttons (in some vague sense of the word) can select a link within that text to navigate to.
I'm exploring these possibilities not just because it lends some current hype to my cause, but also because e.g. blind people deserve to have a first-class Web experience like the rest of us. They shouldn't be an afterthought!
And if I can create them an interface that anyone enjoy would using, I'd think I had succeeded.
As Drew DeVault found, the combined word count of all 1,217 W3C specifications (which nominally defines The Web) at the time of his writing is greater than that of combined:
Note: Not all of those specifications actually apply to browsers, but vice versa not all specifications that defines The Web Platform are created/published via The W3C. I'm not sure how quite much those numbers reflect reality, but I've seen their consequences.
The only people who can possibly implement enough of The Web to compete are those who already have, and even that's no guarantee. Furthermore these efforts, despite being open source, cannot be effectively audited nor (unless you're the size of Google) forked. I've tried auditting Apple's "WebKit"!
As much as I complain about the state of The Web, the truth is I think there's a lot of beauty there. I like HTML & CSS as declarative programming languages, and I love the vast breadth of knowledge and entertainment published there!
If I didn't I wouldn't care so much about saving it.