Switzerland has been negative for years.
Negative interest rates mean only 1 thing. The central bank is 100% confident that they are on the brink of deflationary spiral; much like Greece or Japan.
This is all connected:
https://news.ycombinator.com/item?id=20615403
https://news.ycombinator.com/item?id=20654624
https://tradingeconomics.com/canada/households-debt-to-incom...
When you are above 100% disposable debt to income. It means you must stop spending or your debt continues to increase. 170% is worse than the USA's financial crisis. Other countries like Australia are up around 200%.
We have reached a long term debt cycle. We are about to have one of the worst recessions in a very long time OR depression.