I think hothousing is an attitude. I had too many neighbors and moms at the local moms group ask me what program I used or how I got my DS to do this or that. I had one mom describe how she had her 9 month old in the high chair and would show him a flash card and if he said the right word she'd give him a little bite of lunch. No answer, no lunch. It was "Pavlovian training" she called it. I call that hothousing. Give the baby his darned lunch and talk to him about what's on the plate!
I've had other people give me the "oh poor him" look like I have tortured him into learning to read or something. Trust me, having him read has been more of a curse than a blessing- I have to watch what I type!