Invisible Dirt


If you’ve read my book ‘Household Management for Men ‘ (aka HM4MEN) you’ll be familiar with the concept of invisible dirt. This is dirt can be detected only by people with a certain medical condition, who are known to doctors as ‘women’.

Having spent a month in a Tbilisi apartment where the only cleaning equipment was a broom, a dustpan-and-brush and a duster, when it came time to do a bit of a clean-up – so the landlord and lady wouldn’t think I’m a slob, and by extension that all Australians are slobs – I wielded the broom. Applying it to an apparently clean floor I witnessed an astounding phenomenon. As the broom progressed along the surface of the floor, dirt appeared in front of it!


After some experimentation and coffee-assisted contemplation I concluded that the dirt became visible when it attained a certain critical mass. So by moving the broom along the floor the invisible dirt was aggregated, consolidated, concentrated to the point where visibility occurred.

And I wondered… if this can happen to invisible dirt, might it not also happen to dark matter? If we could devise something analogous to a cosmic broom, and sweep the dark matter before it, a critical mass might be reached that would force this shy substance to reveal itself.

So I’ve done the hard work – the insight bit. If some clever scientist-person will now take the next step and come up with the means to carry out my clever plan… well, I’ll be happy to share the Nobel Prize 50/50.

2 thoughts on “Invisible Dirt

  1. Thanks, Karen. I’m thinking of publishing an updated 2nd edition, in which case I will include a warning against believing the propaganda of the cleaning products industry. In fact I’ll extend it to include the food, pharmaceutical and “wellness” industries too. Household management is like an unending defensive military campaign.


  2. Hi-I am a woman-I do not see “invisible dirt”-don’t peg this on women-peg it on white male CEOs trying to see cleaning products.


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