There are few things more fun than MIT student projects. They're the results of super-smart nerds working in an environment with tons of resources and no pressure to be profitable. Which results in stuff like this fan-powered R/C shopping cart.
Here's what creator Charles Guan had to say about the genesis of this beast:
Huge and Electric are two words that appeal to me greatly. Couple that with my history in combat robots which has caused me to lose all sense of self-preservation around high-speed spinning objects, and it meant that I was going to build a vehicle with EDF thrusters sooner or later. Plus, since Chuckranoplan was destined to be electric, it was good practice. Then came word of MIT Talaris. In short: Electric ducted fan supported platform reduces the apparent weight of the experimental lander vehicle by 5/6ths in order to test operation in the Moon's gravity... without actually, you know, going to the Moon. After being shown their test videos, I decided to build myself a ducted fan thruster that was bigger than theirs.