Question
Use environmental friction before self-control when the trigger is always within reach
Willpower is a strange default when the environment can remove thousands of tiny decisions.
When it fits
- A distracting phone or website sits one gesture away during every difficult moment of work.
When to avoid it
- Accessibility, caregiving and on-call responsibilities can make physical separation inappropriate; design exceptions.
A question to ask
What distraction is one tap or glance away? · Can the environment remove that route during one work block? · What essential function needs an exception? · Does the change improve sustained work in practice?
Why it matters
Combine the digital RCT evidence with workspace design: put the distracting route physically or technically outside the focus context. Leave the phone in another room, block mobile internet, or make a distracting site desktop-only during focus blocks. Measure whether attention improves instead of assuming inconvenience is automatically good.
An example
Leave the phone outside the office for a 60-minute coding block while allowing calls through a watch or separate emergency channel if needed.
Check your result
The focus block contains fewer self-initiated digital switches without blocking essential communication.
Keep this limit in mind
- Accessibility, caregiving and on-call responsibilities can make physical separation inappropriate; design exceptions.
Evidence and sources
The 2025 mobile-internet RCT provides causal evidence that reducing constant smartphone internet access can improve sustained attention in the studied sample.
Accessibility, caregiving and on-call responsibilities can make physical separation inappropriate; design exceptions.
Blocking mobile internet on smartphones improves sustained attention, mental health, and subjective well-being · See source record