All data are filtered, observation is necessarily 'theory-laden'.

There is no logical staircase running from the physics of 10-28 cm. to the physics of 1028 light-years.

The theory, hypothesis, framework, or background knowledge held by an investigator can strongly influence what is observed.

Seeing is an experience. People, not their eyes, see. There is more to seeing than meets the eyeball.

All data are filtered, observation is necessarily 'theory-laden'.