Apparently there are roughly 2 trillion text messages sent per year in the US [1]. I did a sanity check, that’s like 40 or so a day per person, so sounds reasonable.
I couldn’t find the average message length, but I would guess it’s fairly short (with a fat tail of longer messages).
To make the math easy, let’s say the average length is ~10 tokens. I’d be surprised if that isn’t correct within a factor of 2 or so.
So we have 20 trillion tokens per year from text messages in the US alone. And this is high-quality conversational data.
The annual numbers were fairly constant in recent years (and then it drops off), so the past decade of US text messages is about 200 trillion tokens! That’s a metric fuck ton… Much larger than any dataset existing models have been trained on, I believe.
I would guess phone transcripts would be an order of magnitude larger at least. Talking is a lot easier than typing on a phone.
You could train an absolutely insane model with that amount of data… Damn.
[1] https://www.statista.com/statistics/185879/number-of-text-me...