People try talking to Earth-religion deities and don't get anywhere and have mostly stopped trying - but yeah someone would've tried -

All the continents remain in place. Course, she might have been lying about that -

There's no catastrophic evidence of divine wrath in continent-wrecking form or otherwise.

Anyway, there's no one else it's potentially dangerous for people to try to talk to, I guess unless some kid in some poor country charms a Vala and then asks them to come rescue his family from grinding poverty by taking over the place, that's not totally inconceivable as something Oromë or Tulkas'd do...

Mercifully all the psions of the world have more straightforward options out of grinding poverty.

So there's not anything in this narrow category we're missing, there are probably dangers in the broad category -

Probably.

Still not sure whether to try talking to Eru.

I don't think it's worth it but I don't know how to plan around the possibility other people'll do it -

And telling everybody not to probably makes it more likely somebody will just because the possibility's salient...

Yup. - the real question is whether precogging a conversation with Eru is any safer than having one, if it's at least a little safer then maybe it's worth it just to anticipate what might happen when people have non-precog conversations, but if it's likely she'll just - somehow notice anyway -

Yeah.

We're probably unusually bad people to call her attention to - if she doesn't have infinite attention, I'm not really sure -

- a bitter laugh -

 - could ask Melkor for advice - 

Could, might be enlightening -

If she says hi to Melkor, expresses confused delight that it worked, speculates "aloud" about saying hi to Eru too -

[Eru can hear you just fine if you speak aloud with no magic. What makes you think doing it with magic would have special results?]

[It's probably more unusual.]

[I suppose so. What would you ask her if she answered you?]

[I'm not sure yet, I only just thought of it.]

[Eru designed the world to work exactly the way it does. You should assume she is hard to convince to change anything about it. I used to try.]

[What's she like?]

[She has a very developed and specific sense of what is beautiful and moving and grand and she likes designing things she finds to be those things.]

[And Arda is that?]

[Yes. Or - not is, in the present, but Arda's history and fate is very much that.]

[But in the present it's...?]

[It is a moment in the plan, a note in the symphony.]

[Is Earth part of the plan?]