The HETP (Height Equivalent to a Theoretical Plate) in continuous distillation represents the height of packing or equivalent theoretical plate required to achieve a certain degree of separation between components in the distillate. It is a measure of the efficiency of the distillation column and is used to evaluate the effectiveness of the separation process. A lower HETP value indicates better separation efficiency.

The height of a column used in fractional distillation is dependent on the number of theoretical plates needed to sufficiently separate a mixture divided by the height equivalent to theoretical plate HETP.

Nt=H/HETP

In liquid chromatography the 'theoretical plates' number is a measure of the resolution between the peaks of different eluting substances. The higher the plate value the greater the separation. This is particular important as the load reaches the maximum the column is designed for.

Theoretical physics explores concepts that are not yet proven by experimentation.

Your accusations are purely theoretical.