The most accessible interpretation of the quantum vacuum is that it is the “base” state of any system ( including free space ). How much energy is at least th

The most accessible interpretation of the quantum vacuum is that it is the “base” state of any system ( including free space ). How much energy is at least theoretically in this base state is either extraordinarily high or infinite. Now the challenge is that you can only extra energy when there is a difference in energy - the Cassini effect and others get work out of the vacuum via geometry. This geometry takes an equal amount of work to setup as it extracts.