<story><title>“It&apos;s a truck full of traffic lights”</title><url>https://twitter.com/FSD_in_6m/status/1400207129479352323</url></story><parent_chain><item><author>etaioinshrdlu</author><text>As an ML engineer I&amp;#x27;m a little bit baffled that Tesla has not solved this by now. It&amp;#x27;s not like they lack data or ML knowledge.&lt;p&gt;It seems like they should have a million hard test cases that must pass in simulation before releasing a new model. The simulations should be harder and more extreme than anything encountered in real life.&lt;p&gt;I think the real problem is obvious. They&amp;#x27;re trying to rush the work because Elon said so.</text></item></parent_chain><comment><author>kempbellt</author><text>I&amp;#x27;m curious what the issue is here that seems unsolved? It&amp;#x27;s unconventionally displaying what it is recognizing, but the car isn&amp;#x27;t doing anything janky.&lt;p&gt;The car is properly recognizing traffic lights pretty darned well, considering the circumstance. It looks like it has a built in understanding that traffic lights are &amp;quot;always&amp;quot; stationary - hence, assigning them static locations on the 3D map - but it keeps having to update the model because the lights are actually moving.&lt;p&gt;This seems like a very non-obvious edge case that I wouldn&amp;#x27;t expect an ML team to even consider as a possibility. Now they need to program into the ML model an understanding that traffic lights are &lt;i&gt;typically&lt;/i&gt; stationary. Which seems even more difficult to me, from a technical perspective - you don&amp;#x27;t want false negatives...&lt;p&gt;The car isn&amp;#x27;t braking or making any strange maneuvers from what I can tell. I&amp;#x27;m actually impressed that it&amp;#x27;s handling it this well.</text></comment>
<story><title>“It&apos;s a truck full of traffic lights”</title><url>https://twitter.com/FSD_in_6m/status/1400207129479352323</url></story><parent_chain><item><author>etaioinshrdlu</author><text>As an ML engineer I&amp;#x27;m a little bit baffled that Tesla has not solved this by now. It&amp;#x27;s not like they lack data or ML knowledge.&lt;p&gt;It seems like they should have a million hard test cases that must pass in simulation before releasing a new model. The simulations should be harder and more extreme than anything encountered in real life.&lt;p&gt;I think the real problem is obvious. They&amp;#x27;re trying to rush the work because Elon said so.</text></item></parent_chain><comment><author>AceJohnny2</author><text>Years ago, a friend worked in the Autopilot group. It took them &lt;i&gt;a year&lt;/i&gt; to procure servers to store the telemetry of the existing cars, and then weeks to have them setup.&lt;p&gt;They don&amp;#x27;t work there anymore.&lt;p&gt;From their experience, I know one thing: I will never work for Elon Musk. He may be a great visionary and salesman, but he&amp;#x27;s a &lt;i&gt;horrible&lt;/i&gt; manager.</text></comment>