Deep Work

June 2026

• Jun 5, 2026Work SkillsProductivity Evidence Map: What the Research Actually SupportsTask-switching cost and the benefit of short breaks are two of the better-supported findings in productivity research, yet each was disclosed by only 3 of 7 usable top search results, 42.9 percent, less often than the Pomodoro 25/5 ratio at 7 of 10, 70 percent, a claim with no controlled evidence for that specific number. This map rates each popular claim Robust, Supported, or Weak, cites the study behind it, and lists every page checked in the August 2026 measurement.19 MIN5.9k

May 2026

• May 25, 2026Work SkillsUnderstanding Deep Work and Shallow Work ConceptsEricsson found that limit remarkably consistent from music to chess to athletics, with quality degrading faster beyond it than extra hours can repay. The default working pattern makes even that hard to reach. Gloria Mark measured task switches roughly every three minutes, and when an interrupted task was resumed the same day it took an average of 25 minutes 26 seconds, after visiting 2.26 other working spheres.20 MIN4.5k

April 2026

• Apr 15, 2026IdeasThe Cognitive Costs of Multitasking RevealedWhat the research found and why the feeling of productivity misleads. Ophir, Nass and Wagner expected heavy media multitaskers to have developed switching skills, and found instead that they filtered irrelevant information worse, performed worse on working memory, and were slower and more error-prone at task switching itself. Leroy's attention residue work shows brief interruptions cost far more than the time they occupy.15 MIN4.9k

March 2026

• Mar 23, 2026Work SkillsImproving Focus: Insights from Neuroscience ResearchThe assumption was that colleagues and notifications caused the fragmentation, but her observational data showed people switching to email or messaging unprompted, which moves the fix from managing other people to reshaping your own habits. Leroy's attention residue explains the cost: unfinished tasks keep occupying working memory. Only about 2.5 percent of people are genuine supertaskers.15 MIN4.7k

January 2026

• Jan 19, 2026Work SkillsDefining Productivity: Insights for Knowledge WorkersWhy the standard definition fails for knowledge work. Productivity is output divided by input, which is measurable only when outputs are comparable units, and 500 lines of code are not obviously better than 100. Drucker, who coined knowledge worker in 1959, argued the central challenge is defining the right task rather than executing tasks efficiently, because efficient execution of the wrong work is a sophisticated form of waste.19 MIN6.1k

October 2025

• Oct 28, 2025Work SkillsExploring Deep Work: Keys to Focused ProductivityWhy fragmented attention costs more than the interruption itself. Leroy's 2009 attention residue research found that people perform worse on Task B after partially completing Task A than if they had never started Task A, because the unfinished work keeps occupying cognitive resources. Newport's framing maps onto Ericsson's deliberate practice: focused, progressive engagement at the edge of current capability.23 MIN28.9k