Stop Estimating in Numbers: Why Your Team Needs Pumpkins and Whales
A number on the board becomes a deadline in someone's head. Trade the numbers for pumpkins and whales.
Read →Powers of Two
Use powers of two (1, 2, 4, 8, 16, 32) for an exponential effort scale.
Start a fresh room pre-loaded with this deck and share the link with your team — no sign-up required.
The Powers of Two deck
1
2
4
8
16
32
?
local_cafe
Every deck includes the standard ? (unsure) and coffee (need a break) cards. The host can still edit the deck mid-session.
When to use this scale
Powers of two give an exponential scale where each step doubles the previous, useful when estimates span a wide range of sizes. The doubling gaps encourage honest disagreement and avoid the clustering that linear decks produce. Common in engineering teams sizing work that varies from a quick fix to a multi-week project.
Other estimation scales
Recent articles
Beyond Standard Fibonacci: Picking the Right Deck for Your Sprint
Standard Fibonacci is a default, not a law. When to reach for powers of two, modified Fibonacci, or a plain linear deck.
Read →Story Points vs. Hours: Why We Stopped Estimating Time
Time is subjective. Complexity is universal. Why story points price in the risk and unknowns that hours can't.
Read →The Science of Relative Sizing
'Is this bigger than that?' is a question your brain evolved to answer. 'How many hours?' is one it didn't.
Read →Anchor Bias Is Why You Reveal Blind
Someone says 'I think it's a 3' and the round is over before it started. Blind reveal exists for a reason.
Read →
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