| Oh, he proved that in 1980, while he was still a fairly young man.  That he demonstrates it as a senior citizen comes as zero surprise.
 
 BUT, and not to defend him ... rather human nature ... how many artists truly defend their own work in their later years?  How many get the opportunity to defend it or not?  Changes aren't asked of works that are not phenomenally successful, so we don't get too many tests of which artists will defend their art.
 
 How many would pass that test?
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