The Truth About Building With Glass

I was with a tour group right before this happened. The group of people is blaming me as I made a show of jumping on it to prove its integrity. Hopefully I didn't, uh, encourage the breaking...

(Here's me jumping on it an hour before: http://imgur.com/kk1DTht)

An article about what sounds like a very cool thing. Its architect describes it "as a peaceful, meditative place." I found the cover photo inappropriate, though.

I admit it would freak me out to have the glass start cracking as I was standing on it. It really is an awesome view though, we stopped by on our last Chicago visit and you can't really help but clinch up a bit. Recommended if you're travelling.

The only thing I find to be strange: why there isn't a small metal plate with this written on it, just to make sure people won't panic when this happens?

edit: something like this "The top layer of glass is used to protect the rest from scratches and wear of use. The covering glass is designed to crack at it's end-of-life, but this will not effect the integrity of the structure."

I was fooled this would be an article about building apps for Google Glass. :)