Infinitesimal Energy is a hypothetical form of energy that would be required to create or destroy an object with infinite mass.
This type of energy would also be necessary to achieve any velocity greater than the speed of light. While there is no known way to create or destroy an object with infinite mass, it is possible that infinitesimal energy could exist in other forms.
For example, if the universe were infinitely large, then there might be an infinite amount of dark matter and/or dark energy within it.
If these substances had negative mass, then they would theoretically have the ability to cancel out all positive masses in the universe (including objects like stars and planets).
This could potentially result in a state of affairs where everything has zero mass and thus requires noinfinitesimal energy to maintain its existence.
While this scenario is unlikely, it shows that infinitesimal energy does not necessarily have to be associated with physical objects. It may instead refer to a more abstract concept like space itself.