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Mark học AIHyperfocus: How to Be More Productive in a World of Distraction · Chris Bailey
Attention is our most valuable resource. Manage it in two modes, a narrow beam to work and a wide light to think, and you get more done and become more creative.
Two nearly equal halves. The second half (scatterfocus) is what sets it apart from other focus books.
| Unattractive | Attractive | |
|---|---|---|
| Productive | Necessaryreports, bug fixes, planning meetings | Purposefulpassion projects, learning a new skill |
| Unproductive | Unnecessarypointless meetings, busywork | Distractingsocial media, news, short videos |
On autopilot we drift to the bottom-right box. Staying in the top row takes a decision made in advance.
| Annoying | Fun | |
|---|---|---|
| Can't control | Deal with it, then returna colleague's question, drilling next door | Enjoy ita call from family, a friend dropping by |
| Can control | Block in advanceemail alerts, group chats | Block in advancesocial media, news, games |
The bottom row is in your control, so switch it all off before you start: do-not-disturb on, websites blocked, phone in another room.
11 figures and studies the book leans on, checked against the sources. Tap a row to see why.
Gloria Mark and colleagues measured this directly over many years; later rounds found about 40–47 seconds. It is time spent on one screen, not necessarily "losing focus".
A meta-analysis of 94 studies (Gollwitzer and Sheeran, 2006) found medium-to-large effects. The book's 62% versus 22% comes from one small study.
A common estimate in cognitive psychology (Cowan, 2001), replacing the older "7 ± 2".
Switch costs have been measured repeatedly in the lab (Monsell, 2003). Each switch costs a little time and raises errors.
Sophie Leroy's (2009) idea is plausible, but there are few studies and samples are small.
Killingsworth and Gilbert (2010) sampled over 2,000 people via a phone app. The result is correlational, and app users aren't representative of everyone.
Mrazek and colleagues (2013) studied only 48 students. Meta-analyses on meditation find real but small benefits for attention.
Incubation effects are real according to a meta-analysis (Sio and Ormerod, 2009). The claim that undemanding tasks work best rests mainly on one small study (Baird and colleagues, 2012).
A rough 1970s estimate Timothy Wilson used as an illustration, not a measurement. Read it as "a lot versus very little".
Popularised by Shawn Achor but not traceable to a clearly published study. The general direction (positive mood helps work) has support; the number doesn't.
Atchley and colleagues (2012) had only 56 people, no random assignment, and hikers also left their phones at home, so nature's effect can't be separated out.
Read it as a practical handbook. Keep the methods, not the numbers.
The first half is close to Cal Newport's Deep Work (2016): deep work, blocking distractions, scheduling focus. The difference is that Bailey works at the level of each hour and each notification, which makes it easier to apply for office workers.
The second half is the most worthwhile part. Most productivity books treat mind wandering as the enemy; Bailey argues it is a different mode of work, for resting, planning and connecting ideas, as long as we choose it on purpose.
The book leans heavily on the author's own experience and on single psychology studies. Many numbers are quoted to make a point and haven't been tested by replication. Readers should try the methods on themselves rather than trust the figures.
A working day by the book: narrow beam in the morning, wide light in between.