You may or may not like his artistic output. But you got to admit his tv interviews are fairly boring with even the most talented interviewer frustrated by bowies monosyllabic answers

Who?

That is also the case with many actors too. If Graham Norton has an interesting looking guest on his show I tend to watch it but am frequently disappointed by how boring some people are.

Johnny Depp is a prime example of someone who is so animated in front of a film camera but so devoid of personality without a script.

On the subject of monosyllabic answers I remember listening to a live radio interview with Van Morrison in the early seventies. I had been looking forward to the hour long interview for a while but it was so cringeworthy with my then hero answering all questions with one or two words that after twenty minutes the radio show host dropped the interview and just played records for the remaining forty minutes.

I saw Van Morrison live several times in the late sixties and early seventies and he was just as bad live too with an absolute lack of communication with the audience just about managing a "thank you" after each song

Van Morrison is an arsehole who doesn’t give jack s*** about his fans
Walked off stage mAny times leaving his fans hanging.

That is also the case with many actors too. If Graham Norton has an interesting looking guest on his show I tend to watch it but am frequently disappointed by how boring some people are.

Johnny Depp is a prime example of someone who is so animated in front of a film camera but so devoid of personality without a script.

On the subject of monosyllabic answers I remember listening to a live radio interview with Van Morrison in the early seventies. I had been looking forward to the hour long interview for a while but it was so cringeworthy with my then hero answering all questions with one or two words that after twenty minutes the radio show host dropped the interview and just played records for the remaining forty minutes.

I saw Van Morrison live several times in the late sixties and early seventies and he was just as bad live too with an absolute lack of communication with the audience just about managing a "thank you" after each song

To understand why rock stars act as they do perhaps it is necessary to walk in their shoes for a while.
The artistic output of any creative songwriter is bound to peak and decline with age. There is also the perceptions of the listener that also changes.

If you build someone up as some sort of genius then it is inevitable that they can only fall. People looking to make a name for themselves or get a bit of attention usually find a way to make that happen, especially after the person is dead.