Simplest Explanation

Occam's razor simply states that "when there are multiple solutions to a problem, choose the simplest one"¹.

See Also: https://en.wikipedia.org/wiki/Occam's_razor

Sources

¹: John C. Bogle. The Little Book of Common Sense Investing: The Only Way to Guarantee Your Fair Share of Stock Market Returns. John Wiley & Sons, 2017. [B195]