I am not a big fan of zerohedge, but, I have to admit there are very good articles on the site.

This is a very interesting read for investors, Albert Edwards, the perma bear economist, forecasted zero rates or lower years ago and believes we are heading for Japanese deflation and/or Ice Age.

https://www.zerohedge.com/news/2019-08-22/man-who-predicted-collapse-bond-yields-reveals-what-happens-next-there-lot-more

Albert Edwards states that low rates are here to stay and could even go lower (to zero in the US?) if we head into a recession into 2022.

Another interesting read is from Bank of America, comparing current gold market with the 2008 gold market.

https://www.zerohedge.com/news/2019-08-26/pet-rock-indeed-bank-america-says-buy-gold-central-banks-lose-control

Both markets happened after crisis in economy and due to declining real rates for investors. Just as in 2008 real rates are getting negative now and this marks the beginning of a new gold bull market. This will last until US economy grows again and/or real rates become positive again.