Earlier quoted context omitted.
Is this how these things are usually calculated? Does a watch manufacturer say that there are approximately 255 million left arms which we can reach by post, and since our watches sell for $1000 that's a $255B opportunity?
> Is this how these things are usually calculated? Yes, it’s a run-of-the-mill back-of-the-envelope TAM [1] estimate. The point of this number isn’t to value the company. It’s to identify obvious limits to scaling. [1] https://en.m.wikipedia.org/wiki/Total_addressable_market
But isn't making a claim that it's plausible that every square inch of office space in every modern city will be managed by WeWork actually doing the opposite of identifying some of the obvious limits to scaling?
I suppose some of this is addressed elsewhere under other sections, and the fact that it's called the Total Addressable Market explains a lot, but it does seem remarkably arbitrary and to be of very little value.