Hi Pilou,

> maybe a selection "Similar than" (so a first element is selected)
> could be useful ?

It's a good idea! But unfortunately difficult to write in the form of an algorithm.

It's hard to write computer code that is able to understand what "similar" means, it tends to be easiest to understand "completely the same" or "not the same". Similar often involves a kind of judgment which is difficult to encode in an algorithm.

- Michael