I saw a discussion about a supersonic jet company on HN not too long ago.<p><a href="http:&#x2F;&#x2F;boom.aero&#x2F;" rel="nofollow">http:&#x2F;&#x2F;boom.aero&#x2F;</a><p>Discussion here:
<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11329286" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11329286</a>