One is that we entrench a deep social divide, following the brutal path of countries where the middle class lives and works behind the security fences of gated communities.
The other is that it all comes crashing down in an avalanche of bank debt, taking the economy and our high standards of living with it.
So the Government should be applauded for the policies it announced yesterday.
There was no silver bullet in the package of policies.
It included a mix of demand side moves to tighten tax rules for investors and a significant supply side boost for new building.
It is doubtful any silver bullet exists.
Commentators and economists have tied themselves in knots over the past 20 years arguing over what the biggest driver of house prices really is.
Is it land supply, building costs, migration, foreign buyers, property speculation or low interest rates - take your pick?
The fierce debate has largely resulted in stalemate and inaction.
But now there appears to be momentum building.
The initiatives unveiled yesterday will land along with a tighter constraints on lending and - in Auckland at least - the biggest house building boom in nearly 50 years.
Foreign buyers are banned. Immigration has ground to a pandemic induced halt.
The missing piece of the puzzle is cost of borrowing - with interest rates still at record lows.
While the pandemic keeps our borders closed there is no chance the Reserve Bank will lift rates.
But globally there is expectation that a strong pandemic recovery will drive up inflation and that interest rates will rise from 2022.
If and when that happens then all the conditions for a market correction will be falling into place.
For New Zealand - with an economy addicted to the house price inflation - a gradual withdrawal process is preferable to going cold turkey.
The sooner we get used to an economy where house prices aren't a one way bet, the safer we will be from the damage a housing market crash would cause.