Gondola based Rapid Transit

Just saw an interesting Wendover Productions video about Gondola based transit lines. I'm curious if anyone knows if Madison ever explored or studied this option. My first instinct is that it would be a great way to more quickly serve the south and north sides of the city connecting to downtown (by crossing the lakes directly rather than going around them via busses and roads).

https://www.youtube.com/watch?v=a5126u88E7E