Here's why:
* "Bi" as a prefix usually indicates "two" or "double". It doesn't inherently imply cutting.
* "Cut into two" is a description of the action of dividing something into two parts.
Examples of words with "bi" prefix:
* Bicycle: Two wheels
* Bilingual: Two languages
* Binoculars: Two lenses
* Bifurcate: To divide into two branches
Therefore, a more accurate way to describe the concept is:
* "To divide into two parts"
* "To separate into two pieces"
* "To bisect"
The prefix "bi" often indicates a doubling or pairing, not necessarily a specific action like cutting.