Are Jeremy Corbyn’s memory issues pathological or strategic?

Further to the revelations this morning, still not on the BBC by the way:

'... Mr Corbyn insisted he "could not remember" sharing a "takeway meal " with Hamas boss Khaled Mashal  despite writing about the event in his Morning Star newspaper column.

Mr Corbyn told reporters on Monday: "A takeaway dinner? I don't remember any takeaway dinners.

"I have met many people from many aspects of the Palestinian cause as a way of bringing about dialogue, as a way of bringing about peace."'

More in the JC https://www.thejc.com/news/ but obviously the BBC would take Jeremy Corbyn's word as the gospel, or maybe the Hadith, rather than contemplate the possibility that Jeremy Corbyn is unfit to lead the country.