Why does the 5 year bitcoin chart look so similar to the 50 year gold chart?

Here is btc from 2016-2021 and Gold from 1970-2021

I’m a bozo and I really don’t know what to make of this, tbh probably just a visual correlation. But
I think its pretty cool.

https://preview.redd.it/znmxunbuoe281.png?width=942&format=png&auto=webp&s=97c4805c8f89c067289c7ed8b706a985bcd0c17a