Esotera said:
10 years ago the majority of the internet was just text laid out with a few pretty pictures
No, 10 years ago the Internet was pretty much as it is today. Increase in people's connection speeds allowed for larger stuff to be put there. However, 10 years ago the same stuff were less wide-spread.
Also, you're talking about the World Wide Web, which is part of the Internet but not the whole of it.
Esotera said:
now we have beautiful sites with fancy graphics
CSS, a.k.a. that which makes the websites beautiful and the graphics fancy, has been around for more than 10 years. Web designers have been around for more than 10 years, too. Hence, beautiful websites and fancy graphics aren't
that recent.
But you can thank Microsoft, and Internet Explorer in particular, for not having
more beautiful websites. IE 6 is the worst offender but only because people
still use it today. But the IE6 users have finally started to decline for the past couple of years, if I'm not mistaken.
Esotera said:
and you can stream billions of videos in real time
Again, increase in people's connection speeds. It's not that it wasn't possible.
Esotera said:
So what do you think the internet will become in five, ten, twenty, or any number of years into the future?
Nobody knows. We have vague-ish predictions about five years but 10 and beyond are just too far ahead. Ten years ago, Facebook wasn't really dreamt of. Who knows what the next huge hit would be. Who knows what the next piece of technology would bring to the table.
Esotera said:
What will the majority of people be using it for?
Same as today? Entertainment and work, mostly.
Esotera said:
will we still have Adobe Flash, HTML, or will new and better technologies displace them?
HTML is sort of on its way out. XHTML is generally preferred. And there is HTML5 which is still in development (so to say) but sees more and more use, even unfinished. I think I remember Adobe saying they will abandon Flash in favour of HTML5 videos. But HTML is staying in one form or another. Even if replaces with something totally new, chances are that the new technology will still be called HTML after it's predecessor.
The semantic web will see rise in it's use. Just a couple of weeks ago, or so, Google acquired a company that dealt with semantic web search and now the Google results started enhancing the normal search with semantic one. The thing will go big since Google picked it up. At the very least it provides new exciting opportunity for SEO.