On rereading this just now, I just had to laugh. Two reasons I suppose. First of all, the article is really about Markov chains (my original title was just that), and I spend just 3 paragraphs right at the end talking about speech recognition. I think my editor was a smidge too enthusiastic about the speech recognition part. Secondly I note that I talk about random walks in a couple of places – even Gambler’s Ruin – a topic I skirted just recently here. It certainly sounds like I knew back then what I couldn’t work out a few days ago; so maybe there’s something to all this forgetting stuff as you grow older. […]
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