The bra is mostly regarded as a mere mathematical object, without very much physical significance.
12.
The 13 Jupiter-mass cutoff is a rule of thumb rather than something of precise physical significance.
13.
Divergent or not, finite or infinite, is the zero-point energy of any physical significance?
14.
You may be talking about the Bekenstein entropy bound, whose physical significance isn't entirely clear.
15.
The constant h thus appeared as a result of a mathematical trick and thought to have no physical significance.
16.
Weyl's theory led to significant mathematical innovations but his theory is generally thought to lack physical significance.
17.
While field lines are a " mere " mathematical construction, in some circumstances they take on physical significance.
18.
The cutoff distance doesn't have any physical significance, and neither does the circumference of the full circle.
19.
The 13-Jupiter-mass ( ) cutoff is a rule of thumb rather than something of precise physical significance.
20.
Therefore numerical relationships between values measured in different units cannot have any fundamental physical significance because they are unit-dependent.
