Spike mutation pipeline reveals a more transmissible form of SARS-CoV-2: study

This thread from another virologist casts some doubt about the claims of selective advantage proposed in this preprint: <a href="https:&#x2F;&#x2F;twitter.com&#x2F;trvrb&#x2F;status&#x2F;1257825352660877313?s=19" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;trvrb&#x2F;status&#x2F;1257825352660877313?s=19</a><p>Science in action, folks. It&#x27;s sometimes messy, but usually converges on the truth

<a href="https:&#x2F;&#x2F;gizmodo.com&#x2F;what-to-know-about-that-new-paper-claiming-the-coronavi-1843265388" rel="nofollow">https:&#x2F;&#x2F;gizmodo.com&#x2F;what-to-know-about-that-new-paper-claimi...</a>

RNA viruses like this coronavirus mutate an alarming rates. I would be shocked if these mutations have not already occurred in people. There must be a reason why these mutations were not selected. They must be detrimental in other ways