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← Nobody can consistently do more than about three or four hours a day of work that demands serious mental focus.
17 connected korrents · 16 moments from 14 Apr 2011 to 25 Sept 2026.
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Read this korrent: Nobody can consistently do more than about three or four hours a day of work that demands serious mental focus.
Nobody can consistently do more than about three or four hours a day of work that demands serious mental focus.
Last stated 5 years ago
by 29 Jul 2021
OB
Oliver Burkeman — holds since 2021-07-29 — tap for who they are
Same subject: Nobody can do genuinely hard cognitive work for eight hours a day; the sustainable unit is one or two sessions of sixty to ninety minutes. — tap to centre the map on it
Nobody can do genuinely hard cognitive work for eight hours a day; the sustainable unit is one or two sessions of sixty to ninety minutes.
Last stated 3 months ago
20 Jul 2026
TW
Tommy Wood — holds since 2026-07-20 — tap for who they are
Same subject: Humans max out at three or four hours of really hard deep work a day, so the eight hours of intense work executives ask for is not available. — tap to centre the map on it
Humans max out at three or four hours of really hard deep work a day, so the eight hours of intense work executives ask for is not available.
Last stated 7 months ago
22 Mar 2026
NF
Nicole Forsgren — holds since 2026-03-22 — tap for who they are
Same subject: The human brain can only handle a handful of tasks in a single day. — tap to centre the map on it
The human brain can only handle a handful of tasks in a single day.
Last stated 4 weeks ago
25 Sept 2026
ES
Elio Struyf — holds since 2026-09-25 — tap for who they are
Same subject: A hard limit on how long you are online is what makes the time online focused. — tap to centre the map on it
A hard limit on how long you are online is what makes the time online focused.
Last stated 8 months ago
3 Mar 2026
DS
Derek Sivers — holds since 2026-03-03 — tap for who they are
Same subject: The ability to focus and be undistractable for two hours a day is a meaningful competitive advantage right now. — tap to centre the map on it
The ability to focus and be undistractable for two hours a day is a meaningful competitive advantage right now.
Last stated 6 months ago
14 Apr 2026
BL
Brian Lovin — holds since 2026-04-14 — tap for who they are
Same subject: Forty hours a week is plenty if you do not piss it away in meetings; the eighty-hour week is fluff labelled work. — tap to centre the map on it
Forty hours a week is plenty if you do not piss it away in meetings; the eighty-hour week is fluff labelled work.
Last stated a year ago
12 Jul 2025
DH
David Heinemeier Hansson — holds since 2025-07-12 — tap for who they are
Same subject: Ask "how hard can it be?" rather than forecasting the difficulty, because the work really is harder than you think and the suffering is better taken a day at a time. — tap to centre the map on it
Ask "how hard can it be?" rather than forecasting the difficulty, because the work really is harder than you think and the suffering is better taken a day at a time.
Last stated 3 months ago
26 Jul 2026
JH
Jensen Huang — holds since 2026-07-26 — tap for who they are
Same subject: Working harder cannot beat working on a better thing, so out-thinking someone should count as part of out-working them. — tap to centre the map on it
Working harder cannot beat working on a better thing, so out-thinking someone should count as part of out-working them.
Last stated 10 months ago
1 Jan 2026
JC
James Clear — holds since 2026-01-01 — tap for who they are
Same subject: A drop in agency is the earliest sign of burnout, arriving before you consciously notice you are burning out. — tap to centre the map on it
A drop in agency is the earliest sign of burnout, arriving before you consciously notice you are burning out.
Last stated 3 years ago
10 Jan 2024
CH
Cate Hall — holds since 2024-01-10 — tap for who they are
Same subject: A founder who picks an idea because the market wants it will give up, because nobody can persist at something that was never important to them. — tap to centre the map on it
A founder who picks an idea because the market wants it will give up, because nobody can persist at something that was never important to them.
Last stated 2 years ago
19 Jun 2024
AS
Aravind Srinivas — holds since 2024-06-19 — tap for who they are
Same subject: A general inclination of all humankind is a perpetual, restless desire of power after power that ends only in death — tap to centre the map on it
A general inclination of all humankind is a perpetual, restless desire of power after power that ends only in death
TH
Thomas Hobbes — holds since c. 1651 — tap for who they are
Same subject: A business can use stewardship of a community publication as a top-of-funnel customer acquisition strategy without needing the publication itself to generate revenue directly. — tap to centre the map on it
A business can use stewardship of a community publication as a top-of-funnel customer acquisition strategy without needing the publication itself to generate revenue directly.
Last stated a month ago
21 Sept 2026
CC
Chris Coyier — holds since 2026-09-21 — tap for who they are
Same subject: A CEO can master both peacetime and wartime leadership, but it is hard — tap to centre the map on it
A CEO can master both peacetime and wartime leadership, but it is hard
Last stated 16 years ago
14 Apr 2011
BH
Ben Horowitz — holds since 2011-04-14 — tap for who they are
Same subject: A company can produce a good commercial without a large budget — tap to centre the map on it
A company can produce a good commercial without a large budget
Last stated 4 years ago
21 Mar 2023
DH
David Heinemeier Hansson — holds since 2023-03-21 — tap for who they are
Same subject: “Why now?” is the wrong question to make a founder answer — the honest answer can simply be that you started now. — tap to centre the map on it
“Why now?” is the wrong question to make a founder answer — the honest answer can simply be that you started now.
Last stated 3 months ago
28 Jul 2026
BS
Blake Scholl — holds since 2026-07-28 — tap for who they are
Same subject: A belief nobody else shares is a warning, and a belief everybody shares is also a warning; the right number of people who agree with you is small but not zero. — tap to centre the map on it
A belief nobody else shares is a warning, and a belief everybody shares is also a warning; the right number of people who agree with you is small but not zero.
Last stated 3 months ago
28 Jul 2026
SA
Sam Altman — holds since 2026-07-28 — tap for who they are
Same subject: A business can have market fit, real advantages, and sustained effort behind a hard product and still fail if it doesn't give customers a strong enough reason to switch from what they already use. — tap to centre the map on it
A business can have market fit, real advantages, and sustained effort behind a hard product and still fail if it doesn't give customers a strong enough reason to switch from what they already use.
Last stated 5 months ago
2 Jun 2026
JJ
Justin Jackson — holds since 2026-06-02 — tap for who they are
same subject or similar wording a cloud: claims about one subject, named for it bar: when it was last stated, on a scale from 2011 to today (stretched back to the oldest claim here) — full is today a face: someone who holds the claim — tap it for who they are
At the centre
Nobody can consistently do more than about three or four hours a day of work that demands serious mental focus.
Last stated by 29 Jul 2021 · 5 years ago
Holds Oliver Burkeman
Read this korrent →
Similar wording
Nobody can do genuinely hard cognitive work for eight hours a day; the sustainable unit is one or two sessions of sixty to ninety minutes.
Last stated 20 Jul 2026 · 3 months ago
Holds Tommy Wood
Similar wording
Humans max out at three or four hours of really hard deep work a day, so the eight hours of intense work executives ask for is not available.
Last stated 22 Mar 2026 · 7 months ago
Holds Nicole Forsgren
Similar wording
The human brain can only handle a handful of tasks in a single day.
Last stated 25 Sept 2026 · 4 weeks ago
Holds Elio Struyf
Similar wording
A hard limit on how long you are online is what makes the time online focused.
Last stated 3 Mar 2026 · 8 months ago
Holds Derek Sivers
Similar wording
The ability to focus and be undistractable for two hours a day is a meaningful competitive advantage right now.
Last stated 14 Apr 2026 · 6 months ago
Holds Brian Lovin
Similar wording
Forty hours a week is plenty if you do not piss it away in meetings; the eighty-hour week is fluff labelled work.
Last stated 12 Jul 2025 · a year ago
Holds David Heinemeier Hansson
Similar wording
Ask "how hard can it be?" rather than forecasting the difficulty, because the work really is harder than you think and the suffering is better taken a day at a time.
Last stated 26 Jul 2026 · 3 months ago
Holds Jensen Huang
Similar wording
Working harder cannot beat working on a better thing, so out-thinking someone should count as part of out-working them.
Last stated 1 Jan 2026 · 10 months ago
Holds James Clear
Same subject: motivation
A drop in agency is the earliest sign of burnout, arriving before you consciously notice you are burning out.
Last stated 10 Jan 2024 · 3 years ago
Holds Cate Hall
Same subject: motivation
A founder who picks an idea because the market wants it will give up, because nobody can persist at something that was never important to them.
Last stated 19 Jun 2024 · 2 years ago
Holds Aravind Srinivas
Same subject: motivation
A general inclination of all humankind is a perpetual, restless desire of power after power that ends only in death
Last stated c. 1651
Holds Thomas Hobbes
Same subject: agency
A business can use stewardship of a community publication as a top-of-funnel customer acquisition strategy without needing the publication itself to generate revenue directly.
Last stated 21 Sept 2026 · a month ago
Holds Chris Coyier
Same subject: agency
A CEO can master both peacetime and wartime leadership, but it is hard
Last stated 14 Apr 2011 · 16 years ago
Holds Ben Horowitz
Same subject: agency
A company can produce a good commercial without a large budget
Last stated 21 Mar 2023 · 4 years ago
Holds David Heinemeier Hansson
Same subject: startups
“Why now?” is the wrong question to make a founder answer — the honest answer can simply be that you started now.
Last stated 28 Jul 2026 · 3 months ago
Holds Blake Scholl
Same subject: startups
A belief nobody else shares is a warning, and a belief everybody shares is also a warning; the right number of people who agree with you is small but not zero.
Last stated 28 Jul 2026 · 3 months ago
Holds Sam Altman
Same subject: startups
A business can have market fit, real advantages, and sustained effort behind a hard product and still fail if it doesn't give customers a strong enough reason to switch from what they already use.
Last stated 2 Jun 2026 · 5 months ago
Holds Justin Jackson