Is there a workaround for the terminator problem?

[ChameleonScales]

There is a righclickselect proposal :
https://rightclickselect.com/p/rendering/Mtbbbc/fixing-terminator-effect-and-other-rendering-artifacts-in-cycles
Upvote it !

@maraCZ

the main reason is that nobody actually knows how to solve it.

Mental Ray and Mantra from Houdini which are ray tracers solved it.