I sneakily recorded my father and brothers talking earlier tonight about objective reality/morality, religious hoohar and yada, atheists and how they justify things and nihilism, etc
it's a 10min listen so if you can't be bothered then here is one of the highlights:
"but you see it's not actually that these people are making an incoherent argument, it's that they're making an argument that cannot be reconciled with their actual unelucidated fundamental beliefs. It's possible, I think, for an atheist to make an internally coherent argument, it's just that that internally coherent argument won't actually be adequate to explain their behaviour." - my older brother
https://vocaroo.com/i/s0EE6ivoEZ9Z