Most of the discussions here were about earlier prototypes:
<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=4893457" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=4893457</a>
<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=4895746" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=4895746</a>
<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=6891893" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=6891893</a>
<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9719773" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9719773</a>