I was reading an amateur novel which had this sentence:
Humans by nature, at least in this day and age are fickle creatures.
My immediate thought was that the comma placement was wrong. My first instinct was to place them like this:
Humans, by nature, at least in this day and age, are fickle creatures.
but the two adjacent parentheticals in the middle seem awkward when written like that, making me think it might be incorrect.
Both of these sentences seem correct:
Humans, by nature, are fickle creatures.
Humans, at least in this day and age, are fickle creatures.
and removing any commas seems like it would be incorrect. But when combining the two sentences, the first comma feels awkward, and it seems to flow a bit better without it, like this:
Humans by nature, at least in this day and age, are fickle creatures.
But that also seems incorrect since removing the parenthetical "at least in this day and age" leaves "Humans by nature are fickle creatures.", a sentence that seems incorrect without any commas.
The best solution I could come up with is this:
Humans, by nature—at least in this day and age—are fickle creatures.
but even this feels subpar at best.
Is there a way correct way (or ways) to write a sentence like this, with adjacent parentheticals in the middle?