We should note that all of these places of thermal extremes (Finnish saunas, Japanese hot baths, American beaches and mountains) have their opposites close at hand. There are possibly two reasons for having the extremes right next to each other.
The first is physiological: the availability of extremes ensures that we can move from one to the other to maintain a thermal balance.
The second might be termed aesthetic: the experience of each extreme is made more acute by contrast to the other.
Works of art which have great life often have intense contrast within: rough/smooth, solid/void, loud/silent, empty/full. It is the difference between opposites which gives birth to something. Contrast is what often gives other principles their degree of life – the intensity of the boundary, the markedness of the alternating repetition.
Contrast strengthens centers by making each a deeper entity of itself, and thereby giving deeper meaning to both. It is, at its simplest, what allows us to differentiate. But meaningless contrast remains meaningless. It is only when centers are actively, mutually, and meaningfully composed that it acts to deepen the whole.
"Feature complexity is like surface area and quality of execution is like height. I want a base level of quality execution across all features. Whenever I commit to building or expanding a feature, I'm committing to a baseline of effort on the user experience."
There’s a distinction to make: The set of features you choose to build is one thing. The level you choose to execute at is another. You can decide whether or not to include a feature like ‘reset password’. But if you decide to do it, you should live up to a basic standard of execution on the experience side.
Features can be different sizes with more or less complexity, but quality of experience should be constant across all features. That constant quality of experience is what gives your customers trust. It demonstrates to them that whatever you build, you build well.