QM says he hasn't, instead opting to rely on the mere-exposure effect. It is not reasonable to infer that he will change strategies here.
And this is something that hasn't happened here (since we are clearly past the night of our mother's death already), so it is reasonable to assume Otto is using different strategies here.
Having Otto inside the tent pissing out then outside it pissing in would be nice. If instead of the situation in canon in which the alternative to us on the throne was Otto's grandson, Otto is faced with a situation in which the alternatives to us are either Daemon or the Hightowers' overlords then it doesn't seem impossible for us to be able to get him on our side when it comes to the succession, and using that political acumen for us rather then against us. We'd just need to make sure we don't alienate him with our own behavior too much.
We have Corlys going "yeah no, a few years is too long," already. Waiting for hypothetical babies a decade from now? That would also need to grow up? Yeeaaaahhh no one's betting on that.
Dorne is faaarrrr down the list of "where do they get food???" worldbuilding issues. Top is the whole "multiple year winters"
The North has the combined area of the entire rest of the 7K, but with a typical population of a kingdom. Most of it is empty woods etc. You don't supply an entire population with food over such distances with such poor infrastructure. The years long winters really do not make sense, especially in the North.
Depends on how the population is distributed. Population densities probably become lower the further north you go. Perhaps you have something like 90% of the North's population living on 10% of its land, easing distribution difficulties to people who live in that 10%.
Blatant fear-mongering. That's like mentioning Olenna using poison to kill Joffrey and saying the Tyrells are gonna poison Rhaenyra to ensure their (and yes, it is their, not there) side inherits.
Aemon was 37 when he died and he only had one kid by that point who was old enough to marry and be pregnant. Unless his wife died and he remarried he had fair reason to think Rhaenys would most likely be his only child.
