There's a bunch of species of cactus (family Cactaceae) but only Rhipsalis baccifera is found in the old world. Even weirder is that it's not just found in the Americas and sub-Saharan Africa but also Sri Lanka for some reason.
It's gotta be the companies. Since the British forced out the Indigenous population in the 70s the only permanent inhabitants of the Cagos Islands/BIOT have been US military personnel.
Better than asking a dentist is asking a dental hygienist. Dentists are dental surgeons primarily concerned with solving specific problems with surgical intervention. Hygienists are oral health nurses concerned with preventive care and overall health and wellbeing.
And listen to your hygienist. There is no cure-all toothpaste for everyone (eg not everyone needs anti-sensitivity toothpaste, the risk of erosion in whitening toothpastes might be a concern for some people, some people need higher fluoride concentrations, etc)
When avoirdupois pounds and pounds-force are used together I'm pretty sure it's more common to use 'lb' for avoirdupois pounds and 'lbf' for pounds-force.
You already can do that with C++20 concepts and the requires expression
template <typename T> concept has_member_foo = requires(T t) { t.foo(); }; // Will fail to instantiate (with nice error // message) if t.foo() is ill-formed template <has_member_foo T> void bar(T t) { // ... } // abbreviated form of above void baz(has_member_foo auto t) { // ... } // verbose form of above template <typename T> requires has_member_foo<T> void biz(T t) { // ... } // same as above but with anonymous concept template <typename T> requires requires(T t) { t.foo(); } void bom(T t) { // ... } // If already inside a function if constexpr (has_member_foo<T>) { // ... } // Same but with anonymous concept if constexpr (requires(T t) { t.foo(); }) { // ... }