Office towers: Residential lofts of the future?

[Surrealplaces]

Hopefully this topic doesn't already have a thread. I couldn't find one, so I decided to create one.
I've always been interested in this concept. Most of the time it doesn't seem economically feasible, and whenever I've mentioned the idea, people seem doubtful that it would ever work

My hope is that someday maybe it will. My hometown of Calgary might be the perfect place for this, as it is a booming energy economy city with millions of square feet of office space, and millions more on the horizon.

It seems logical that someday there will be a large amount of empty space on the market here in Calgary, and maybe this will be the case with other North American cities. Would the economics then work? Could we see office towers turned into the lofts of the future?