Periscopic multi-storey office building

The current fashion for the modern office is still the open-plan layout. But with the price of downtown office real estate in some cities, this is not elegantly achievable in office blocks where floors have a narrow footprint.

One solution would be an architectural design where two complete walls on each floor are comprised of a mirror canted at a 45 degree angles, relative to the floor above or below. One wall would be angled 'upward' toward an opposing mirror on the floor above, while the wall/mirror at the other end of the office would be angled 'down' toward an opposing mirror on the floor below. This would create a periscopic effect for the entire office block, such that it would be possible for workers to 'see' every single floor, in the horizontal plane, appearing one after the other. Audio feeds completing the illusion of a multi-storey open plan layout would be optional.

The building's strength would need to come from interior pillars rather than wall rigidity for obvious reasons. Waist-height barriers would also be needed to prevent people from wandering into the wall/mirrors...

(PS. I know this idea is similar to the "Office Periscope" already in the halfbakery (I was amazed to find a similar idea at all!); however, this is an architectural feature rather than a device - and one designed to allow all workers to see every floor at once, not just a selected floor.)