How long is the exhibit?

In and out in 1hr. unless you allow yourself to be "immersed" in the visuals, then perhaps a little longer.

One hour to 1.5 hours. Depends on the amount of time you spend at each exhibit! Personal choice.

I wish I had allotted more time than 1.5 hrs because I like to enjoy the large rooms and watch the transition in total but I made dinner reservations and had to rush through the end. I did also do the cloud room which the wait and activity was probably and additional 30/45 min

You will be walking among the exhibitions , 45 to an Hour should be enough time to enjoy the whole show.

You go at your own Pace you can make it a long experience or short I think it kinda depends on how you enjoy each room. But I’d say an hour to an hour and a half should be sufficient.