At The Overlap

Have you ever noticed that some decisions get harder the longer you look at them?

Not because they’re complex.

But because, at some point, everything starts to feel equally reasonable — or equally unconvincing.

Everyone has experienced this.

You are sitting at your computer with 27 tabs open, which feels like due diligence, and not at all like a problem. (It is, by the way. Just a very well organised one.)

You are comparing headphones. Holiday destinations. Where to order photo prints. You name it.

You open a few tabs. Then a few more. At some point, every product starts to look… interchangeable. Different brand names, same three bullet points, same reviews, slightly different wording.

There’s no lack of information.
If anything, there’s too much.
And instead of becoming clearer, things start to melt together.

It looks like an attention problem

At that point, the assumption is often the same: you haven’t looked closely enough. So what is the typical response? Open another tab. Look at the options one more time.

It feels like a problem of attention. “Did I miss something the first time round?” (Somehow you know you didn’t, but you still think it). As if the signal is already there and you just haven’t extracted it properly yet.

So you keep reading, comparing.

Even when the differences feel less convincing than they did 15 minutes ago.

What’s actually changing (and why you don’t notice)

In sensory testing of food and drink, this problem is well known — just in a more controlled form.

Take something simple: adjusting the sugar level in a chocolate dessert or fruit yoghurt. Not a dramatic change. Just enough that it might affect taste, texture, or aftertaste.

To test that, you don’t rely on instinct. You run sensory sessions.

In this type of situation, you would usually first check if a difference is noticeable, then try to understand what changed. Sweetness, thickness, aftertaste.

Because detecting a difference is one thing. Describing it consistently is another. Which makes it even more important that the results are reliable.

At the beginning of a session, this works well. Differences show up clearly. “Clearly sample A is sweeter than sample B”.

But after a small number of similar samples, often around 5–7, something shifts.

Not theoretically. Observably.

Discrimination drops. The products don’t become more similar. But your ability to separate them does. “I think Sample F is thicker than Sample C but I’m not sure”.

Remember that beer or wine tasting?

That drop in confidence is usually the first sign that perception is no longer reliable.

“Wait, was it the third beer that was fruitier or the sixth one? I’ll taste both of them one more time to see… oh I am not sure anymore”.

Physiologically, this is expected.

With repeated exposure, sensory receptors reduce their response — a process known as sensory adaptation. At the same time, the brain reduces contrast between similar inputs, compressing the differences you’re trying to detect.

Efficient for survival. Slightly less helpful when you’re arguing about 3% less sugar or which beer has more fruitier notes.

So you’re no longer working with the same resolution you started with.

And what makes this difficult to notice is how gradual the shift is:

“I can clearly tell the difference”
→ “I think there’s a difference”
→ “I’m not sure anymore, but I’ll keep going”

The instinct that makes it worse

Once that drop in clarity happens, the response in everyday situations is almost automatic.

Let’s say you want to decide which shoes or coat to buy in the store. What do you do? And don’t try to tell me you all go home and sleep on it.

You stand there slightly longer. As if time will reveal something new. You add one more comparison, just to be sure (because stopping would feel too much like giving up).

It feels productive. Like you are getting closer to a “good decision”. Which is exactly why it’s hard to stop.

Because when something becomes harder to distinguish, we tend to interpret that as a lack of effort. Not a change in perception.

So we compensate. Not by changing conditions, but by increasing input.

In behavioural science, similar patterns show up as decision fatigue and choice overload. Not necessarily because there are too many options. But because, over time, the ability to distinguish between them starts to degrade.

The experience shifts:

Not:
“these options are different, I just need to pick”
But:
“these options feel similar. And I don’t trust the difference anymore”

And that’s a different problem. One more effort doesn’t solve.

Where this shows up

You can see it in small ways. Re-reading something without processing it. Checking one more option, just in case this is the one that finally feels different.

And at work: meetings that run past the point of useful decisions (but feel now too committed to stop), analyses that go deeper. Not because the signal is clearer, but because it’s harder to trust.

But in a sensory test, this moment would be treated as a signal to stop. In everyday situations, it’s usually a signal to keep going.

What sensory testing does that we don’t

In sensory work, this problem is expected. So it’s designed around.

You don’t rely on willpower or focus to maintain clarity.
You change the conditions instead.

A typical session is structured with a few simple constraints:

• a limited number of samples (often ~5–7 for similar products)
• breaks between samples
• palate resets (water, plain crackers)
• sometimes even randomised order to avoid pattern bias

Beyond a certain point, you acknowledge that the data stops being reliable. And importantly: you stop before it feels necessary. Which, outside a lab, feels deeply unnatural. Irresponsible even.

In everyday situations, we tend to do the opposite:

• extend the meeting
• open more tabs
• keep refining
• push until something feels “resolved”

But the sensory model suggests a different approach:

not “keep going until it’s clear”
but “protect the conditions that make clarity possible”

Not maximise input. Protect resolution.

A sensory tester wouldn’t push through 20 more samples “just to be sure.” They would stop at the defined limit. Which is part of the method, not a weakness.

If we were to do this with decisions, it might look like:

• stopping a discussion while it’s still productive
• deciding between a short list, not the full set
• stepping away before everything starts to blur

It’s probably less satisfying in the moment. But it preserves something that’s easy to lose: the ability to actually tell the difference.

A different question

If the issue isn’t effort — and it isn’t information — then the question changes.

Instead of: “Do I need to look at this more closely?”
it becomes: “Am I still in a state where I can tell the difference?”

That’s a less intuitive question. But in many cases, it’s the more useful one.

Because once discrimination drops, the goal isn’t to extract more signal. It’s to return to a state where differences are detectable again. Sometimes that’s a break. Sometimes it’s time. Sometimes it’s simply stopping earlier than feels comfortable.

Not because the work is done. But because continuing in the same state won’t make it clearer.

Closing reflection

We often assume that clarity comes from more. More information. More analysis. More time.

But across very different situations, the pattern is consistent: clarity depends on contrast — not volume. And contrast isn’t something you can force. It depends on the state of the system doing the perceiving.

Some things only become clearer once you’ve stepped away — long enough for differences to become visible again.

Food for thought

Where in your daily life or work are you still adding more, at a point where your ability to tell the difference has already started to fade?