"Two weeks" is a unit of hope, not time. Across 346 tracked predictions, when a deadline slips, the median slipped prediction takes ×1.9 the promised time — and that excludes the 86 that never arrived at all.
As of October 26, 2026, twoweeks.lol tracks 346 dated claims Elon Musk made in his own words, from 463 statements (a claim he repeated or re-dated counts once). 229 claims are resolved: 50 were delivered on time (22% of resolved), 77 delivered late, 16 only partly delivered, 75 missed and 11 cancelled. 116 claims are still pending and 1 disputed. He has moved a deadline 134 times. Among claims delivered late with a promised span of more than a month, the median took 1.9 times as long as promised; promises that never shipped are not in that number. Download the data.
Median Elon-Time multiplier ×1.9, derived from every late-but-delivered prediction with a dated promise. The 86 promises that never arrived are excluded — so consider this the optimistic case.

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