What wouldn't be?

Something as simple as flipping on a device with a light switch would seen like witchcraft.

Want to know what time it is in the dark of the morning? reliable time keeping might be possible in a house, but certainly not in a bedroom, and certainly not millisecond-accurate or observable in the dark.

I think the only thing they wouldn't be impressed with is alcohol consumption, but even then we have a variety, production scale and safety level they couldn't fathom.

And the capitalist overlords will readily trot out these points and claim we live like nobility from the 1600s while sapping us of our every free moment and waking thought. Forgive my turning this political