isn't this the cave where Bayek and Aya used to hang out when they were children?

I have completely forgotten that Layla exists

If the ANIMUS wasn't in the game would I notice?
Well ... no.

This is somewhat lame. I've already been in this place and then loading screen tells me about "message in the present that will help find something in the past". But also why Layla need to read ancient riddle about where she is located right now to find this place in the past? This got me some cognitive dissonance about what Layla knows and what player knows and this doesn't feels like something appealing but rather something that oops didn't worked as intended. This feels cheap and deflating

I don't think that Layla is Bayek's ancestor, though. Layla's developed Animus tech that let her view memories of people who were not ancestors, that's literally the premise of the Animus in this game.

:-) Thanks for explaining. I think I understand your hypothesis. Still very complicated though. Thats one of the (very few) things I did not like about this game: A veeeery huge amount of complicated backstory that simply gets dumped on you. Like the alien/ancient temples with the monologues you activate, I didn't understand half of it (storywise), although I played 4 or 5 of the previous games, including the first one. Those monologues are also soooo boring and seem to go nowhere besides technobabble. Same for the laptop files you can read, felt more like a chore than anything. From all the "present" storylines in AC, this was the most unnecessary for me.
But thats of course highly subjective...

You're welcome and thanks for checking my guide out. I guess maybe he made this spot as his final resting place (grave) because he mentioned something like "there is something about this cave, a feeling of knowing, it tugs at my soul." and so he left tablets there.

~~You know like a lifestory or autobiography i guess? because the Pharaohs (this is just a hypothesis) when they die right, in the pyramids they leave stories about their life, the heiroglyphics. ~~

He felt right at that time, he felt that his reincarnation (more like ancestry line) will look for it and get answers from him in the future. He felt connected with Layla, like a driving force (because the Animus connects the past and the future and he felt that connection already in the past like how Ezio and Desmond talked in the same way in AC:Revelations?.)

I'm not really good at explaining (english is not my primary language),, i could try more but this is how I see it. Hope you understand haha

Thanks for the guide!
Discovered it before though, the "not easily found" in the game's description is misleading and highly exaggerated IMHO, because you can spot it without difficulty from far away in eagle mode. I thought it had to be another, very small and very hidden cave somewhere else, would have searched forever, maybe. And how come the directions to this cave are in the cave itself? Did someone find the text tablet somewhere else and bring it there? For what? Doesn't make any sense to me...

Note that the equipment in it is random, I got a shield while a friend of mine got a sword. It will be one random item from a fixed list, you can acquire all of them by finishing all the riddles, so no worries.

I got a legendary dual sword from it and u cannot scan the item but u can loot it from a pile of bones beside the nearby corpse. Have fun