I never understood how fax machines worked until about 2 years ago. I thought that that actual paper you put into the machine was somehow sent to the other person's fax machine, and it was the actual paper that you had put into yours. I was totally perplexed until my mom explained it to me.
A childhood belief about technology

others believed things like this
- I used to believe that coin change could turn into actual paper money if you left it alone for a long time. — Marcus O
- I used to believe that fax machines and computers sent real sheets of paper through the lines.— H
- I used to believe fax machines instantly teleported a piece of paper to who ever you wanted. Anon
- i used to believe that our ansering machine was the washing machine and that it could talk
— tamara - When I got my feet measured by the electronic machine, I thought that the machine will squash my feet!— Helen
- My sister thought (not more than one year ago, she is now 14) that John Doe was an actual person.— Brother to Natascha