Failing to determine common ground due to excessive insight into some field/topic

'Blinding someone with science' is also used in a metaphorically broadened sense outside the science domain.

blind with science (British & Australian)

  • If you blind someone with science, you confuse them by using technical language that they are not likely to understand.

[Collins Cobuild Idioms Dictionary]

You're also not on the same wavelength as your audience.

be on the same wavelength [phrase]

  • to understand the way that another person thinks because you often have the same ideas and opinions as they do

[Macmillan]