There is a coding language coming out every couple of years.
As one dies down, another rises up.
Its tempting to chase down trends.
And with enough energy, this can work.
But often, its wasted energy, as we learn tactics that often have the same core.
By learning the fundamentals, you see commonalities in all these languages.
You can then pick new languages easier, plus know which ones to choose.
You are seeing things from a higher level.
So put in the work now and watch it compound.