I want to know how an autonomous Tesla can drive  when it can not see the road due to snow or freezing rain.  What happens when the weather turns to crap and the car is driving.  How does the algorithm handle that?,(reply>), @peter beattie I think it will have methods of handling partially obstructed vision which will work quite well outside of truly extreme weather where as you pointed out even humans can't really drive.<br><br><br>as for just dirtying of the sensors and whatnot that's a non issue, once it reaches a threatening level it can simply go for a car wash or any other number of fixes.,(reply>), @i  I did not know that about the radar.  Makes sense though at frequencies near 70 GHz (thanks Google), I would have thought it would have been all weather radar like marine radar at 9 GHz.  It is still going to be difficult though because I do not think optical processing can fix visual obstruction  which can happen with wet snow and ice from freezing rain.  As a human I can stop, get out and scrape.  An autonomous vehicle would be stranded.  Perhaps camera heaters would help.  I envision the car being smart enough to know when such weather was probable  and suspend operation until it clears. Thank you for the reply:-),(reply>), @Jeremiah John  I believe that to be true John.  However, my Model S's cameras can get entirely obstructed.  As a human I can pull over and clean them off; an autonomous car will not have that luxury.  I suspect that the car will know from the Internet when it is going to snow to the degree that there will be  a probability of autonomous inability and the car will be smart enough to suspend operation until the really bad weather passes.  Most responsible drivers do this too.  Thanks for your reply.,(reply>), that's a kinda odd question, it would handle it the same way humans do presumably, slow down and guess.,(reply>), Yea I think current cars will struggle with this since it retrieves the majority of the visual data from the radars which can be unreliable in snow. If Autopilot could solely use camera's, it would give a much better visual data and they can easily filter out snow from the "vision" but it would require more processing power. But as processing power gets smaller, cheaper and better every single year. This could be improved in time with newer models and perhaps do an upgrade the chip for current cars on the road. Remember, Tesla made the Autopilot hardware modular so you can swap it with a new chip if something better comes out.