I agree about VR and AR.<p>As for the rest: wearables hadn&#x27;t had a really strong use case - so it&#x27;s either a niche or a fashion&#x2F;status object - and maybe that&#x27;s what will limit growth even when size&#x2F;batteries gets solved ?<p>IOT: cost is definitely a huge barrier, but will it be that huge deal ? or just another feature in the stuff we already buy - sold to us through the same big companies, with a few specialized products ?<p>And 3D printing - don&#x27;t you think a 1-day Amazon 3 printing with the most optimal processes will win, for most consumers ?