I think he's probably right - and I say that knowing that I am among the laziest of writers - although I don't know that I agree with his implication that choosing to write "The Making of a Chef" in the four months before his wife warned they would be completely broke (they had an infant and he had just graduated from chef school), was an act of superior self-discipline that should be commended. It sounds more like self-centered stubbornness to me and I don't think there are many mothers who would make the same choice in that situation. But, I digress...this wasn't meant to be a criticism of Michael Ruhlman - I actually like the piece. (Plus, obviously the whole thing worked out well for him and his family.)
It's not the first time I've heard the recommendation to set a daily word limit and make yourself meet it, even if what you write is crap. Perhaps it's the combination of hearing it again paired with him hitting the nerve of still being able to do it even with other pressures and responsibilities upon you, but this time I feel like it's something I could actually do. What will I write? Well, let's hope that reveals itself somewhere in those hundreds of words that I promise myself to produce, starting...soon.