Disagree.
Inventions do arise from need, but also nothing was done about this need for home appliances for centuries.
Women sweated over laundry, & hot fireplaces cooking until... a federal program for electrification in rural areas & home appliances demand could begin.
The electrification project was a jobs program during the Great Depression.
& brought access to the radio, another technology solution for a social problem; communications in a democracy
@Npars01 @ian You're ... kinda proving my point here?
Nothing was done for centuries because the culture didn't value the freeing of women from the daily grind. The ability to technologically make life easier for women predates the actual making life easier by easily a century.
It took women hitting the work force in WWII and then not wanting to go back to the idiotic daily grind to finally effect the sea change needed for the technology (which was already possible!) to be mass produced.