Temporary dips are certainly possible, mostly due to external events (e.g. 2008). But they won't be sustained, and the growth will quickly re-establish itself.

Temporary dips are certainly possible, mostly due to external events (e.g. 2008). But they won't be sustained, and the growth will quickly re-establish itself. Tokyo is a great example. I remember all the urbanists congratulating themselves about "How Tokyo solved the problem of housing".