How do you optimize content for a voice-first world?

For years, the use of voice search and voice assistants to answer questions has been on the rise. According to Google, 20 percent of all mobile search queries are voice search, and that number will only go up.
Voice recognition technology is getting better and better: Google’s technology is now 95 percent accurate.

Yet for most SEO professionals, not much has changed in the way they optimize content for this new way to search. Now is the perfect time to pay attention to voice search and to start incorporating SEO strategies that can increase your chances to show up in voice results.
Gary Vaynerchuk agrees. From his book, “Crushing It”:
It’s called Voice-First, and anyone currently building a personal brand needs to learn about it fast and early. Its platforms are the equivalent of yet-to-be-discovered Malibu beachfront property, much like Twitter in 2006, Instagram in 2010 and Snapchat in 2012.
Voice search and personal voice assistants like Siri, Cortana, Google Assistant, Google

Search Engine Land Source

Google adds trending searches and instant answers to iOS app

With a new search app update for iOS, Google has added trending searches and instant answers. (TechCrunch noticed it earlier today.) It replicates a previously introduced Android feature which reportedly resulted in an outcry, causing Google to enable an opt-out.
In the “what’s new” discussion in the iOS App Store, Google says:

See searches that are trending around you when you tap on the search box to start a search
Get instant answers to your questions as you type them, before you even complete the search. Try it out by typing for “goog stock” or “how tall is the eiffel tower” and see the answer show up in the suggestions below the search box
Easily give feedback on any suggestions you see while typing — just swipe left and tap on the “info” icon

Here’s what it looks like:

The trending searches appear to be national rather than specific to my location. The data appear to be Knowledge Graph data, but it’s not

Search Engine Land Source