Video of Tesla crash shows exactly why Autopilot isn't true self-driving tech

Listen up, Tesla fans. 

Your favorite carmaker's Autopilot is a super-smart marriage of high tech hardware and software that provides one of the best semi-autonomous driving experiences currently on the road. 

That said: It is not a fully self-driving system and shouldn't be used as such.

A video posted to the Tesla Motors subreddit and spotted by Electrek shows exactly what can happen when a Tesla Model S driver puts too much trust in his car's Autopilot. It's a reminder that a human driver is always needed in a Tesla, even when the Autopilot system is engaged.