[skylan_q]

A bubble is inflated by speculation that isn't rooted in anything except the rising price.

It's been like that for the last 8+ years.

[hellogoodbyeeee]

You are trivializing how difficult it is to determine this. For example, is the empty mansion empty because someone is speculating with it or because a globe trotting billionaire forgot he bought it?

I'm sure there is speculation going on in the market, but we can't tell to what degree without polling the people buying real estate.

[vinceguidry]

Hence the reason for the second rule. You don't know what they're propped up on until they disappear.