I knew Mark Colvin (and his kidney!) purely through Twitter! And sad at his loss.

I did read some of his interview transcripts: a gentle questioner able to get a better answer! But in the maelstrom that is Twitter, he came across as funny, intelligent, curious, never ever patronising, clever and subtle, a joy to read.

And his last tweet!!

I think every one failed social media except for Mark Colvin.