In reading D. Bohm "Quantum Theory" (1979), on p. 625 he makes the statement..."(adsbygoogle = window.adsbygoogle || []).push({}); without appeal to a classical level, quantum theory would have no meaning". And then ..."quantum theory presupposes the classical level and the general correctness of classical concepts in describing this level"[e.g., the classical level--added for clarity]

If I read Bohm correctly, he seems to suggest that reality must always be dialectic union of the mathematics of the classical and quantum--that is, there does not exist a "classical reality" or a "quantum reality", only a reality that is a union of the classical and quantum.

Since Bohm's book is now > 35 years old, are his statements concerning relationship of classical to quantum held in 2005 to be valid ? Or, has new information since 1979 shown Bohm to be incorrect. Clearly, Bohm understood quantum mechanics, thus I cannot believe that what he said above was not true as of 1979. Thanks for any clarification that can be provided.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Union of Classical and Quantum

**Physics Forums | Science Articles, Homework Help, Discussion**