Hey, I was cruising on the highway going to a job, lookign at the white stripes fly one by one by one at a high rate ... then I though:"Boy! am I lucky not to have to walk, only 30 miles, but it would take me for ever. Not even talking about hauling all the equipment in the back".
Then ... because I was really borred ... I kept thinking:" What am I the most used to, and would not live without? "
My car?
Electricity in my house?
Phone?
Turning a valve and have drinkable water not having to walk 3 miles to a whel?
Be able to froze my food?
To have a credit card instead of a bag of cash?
To be able to see the world as it unfolds from home?
It's hard to tell as most inventions interact with each other, maybe a modern comodity more than an invention...
I don't know. I would say my car, I always had the need for "What's over there?" and sure my car feeds my curiosity.
