Don't understand his point. 100 years ago, we understood the physical laws surrounding the everyday things like the telegraph, the radio, the bi-plane, the ear

Don't understand his point. 100 years ago, we understood the physical laws surrounding the everyday things like the telegraph, the radio, the bi-plane, the early cars, etc. And 100 years from now, we will understand the physical laws surrounding everyday things like the holograph, light speed travel, the driverless hover-car, etc.