A list I made a few years ago:

This morning I harnessed the power of lightning to make breakfast, made some synthetic milk for my baby daughter, watched some moving pictures that were sent over the ether, and then piloted my metal horseless carriage to work. I had some productive discussions about how to improve the ways in which we send people to space and back. (Although making predictions by using machines to solve trillions of nonlinear equations is very cheap, the results need to be more reliable.) Once I finish sending my musings to you folks via this world-girdling network of glass and copper wires, I plan to drive home at a hundred kilometers per hour over a few concrete ribbons (often suspended dozens of feet off the ground), instantly reheat some food with microwave radiation, and maybe enjoy a glass of grape juice that's been partially consumed and replaced by yeast excretions.

Some of these ideas are better or worse than others, they're all relatively normal today, and some of them have been pretty normal for decades or even millennia. But could you imagine what a crackpot you would sound like explaining each concept for the first time to someone unfamiliar with it?