We were outside looking at the night sky and I said 'look, there's the Plough'. To which he replies 'what?' 'You know, constellations?' 'I don't know that that is...'
Looking at something that happened during the civil war. Him 'what's that then?' 'When Oliver Cromwell abolished the monarchy? Roundheads and Cavaliers?' 'Dunno any of that'. 'Didn't you do it at school?' 'I dunno. Probably'.
I no longer know if he does know and doesn't care, or just doesn't know. He seems to have a tiny, tiny field of interest (cars) and anything else it's just a shrug and 'I dunno'. Do you think he might be putting it on to stop me talking?