Why sequential reading fails
Reading email one item at a time interleaves three cognitive modes — scanning, deciding, acting — on each individual email. This is slow. Batch-deleting is fast but lossy. Three-pass triage separates the modes and applies each one in batch.
The three passes
Pass One: Scan and sort (2 minutes) Read subject lines and first lines only. One binary decision: does this item need to stay, or can it go? Archive the noise. Do not read, reply, or decide what to do with what stays.
Pass Two: Triage what remains (5 minutes) For each kept item, decide the fate: reply immediately (under 2 minutes), create a task, delegate, or file as reference. Decide only — do not execute beyond the 2-minute replies.
Pass Three: Act (15 minutes, time-boxed) Execute the decisions from pass two. Create the tasks, send the delegations, file the references. Stop when the time box expires, even if the inbox is not at zero.
Three passes, well-executed: approximately 20-25 minutes for an average inbox. Faster than sequential reading; far more accurate than batch-archiving.
Steady wins.