You probably noticed that a lot of queries on Google the first result is the answer by Google.
Currency/weight/leangth conversion
events
lyrics
and im sure there are more examples.
Im sure it kills the business models of sites who are providing these answers . Do you think the day is coming where google and other machines will take over and kill all content sites online?
I think that's extremely unlikely. Google relies on content being out there - no content, no ad revenue, either from search or display. And they're unlikely to want to fund all the world's content themselves.
Google's "trusted answer" snippets are certainly causing some sites some headaches, but I've also seen SEOs happy about getting into the "trusted answer" snippet - after all, "Google says we're the definitive resource for this" is a pretty big bit of social proof.
The various movements against net neutrality are a bigger threat to content overall, IMO. A lot of content sites run on thin margins, and increased costs if net neutrality goes away could damage them a lot.
My 2 cents.
This hurts: http://prntscr.com/h0vudn - no link or info where Google took that info from.
Good and actually useful for businesses and users alike: http://prntscr.com/h0vusd - links with sources, easy to spot, better info to digest at a quick glance. If this gets perfected, it's very useful in my view.
In essence, if Google properly credits the sources, it should be good. If they pass it as their own content, for information more important than USD/EUR rates, then it's going to be a problem.
Quite!
If the question was instead "will Google make some moves that will absolutely screw the business models of certain sectors of the content-creation industry?" the answer would be "yes, absolutely".
Sometimes because they're closing loopholes (see Penguin and basically every other SEO update ever), and sometimes just because they decide they should do A Thing, and that Thing happens to seriously inconvenience a lot of people.
Just like if you're making viral content, you're constantly at the mercy of Facebook/Twitter/whoever's changing algorithm and approaches, and if you're making video, YouTube's slightest sneeze can knock your entire house down.
I used to ran a clip art website and when Google decided to show the clip art on its results page, I definitely saw a decline in my traffic. And for those website that are not in the top 3 or 5 results, I seriously doubt they will still get any sort of traffic or any at all. So I guess it will be tougher for website owners in the long run especially new sites unless you have very good content, it will be tough to get to the top of the results page.