Where does your frame sit?

A picojoule isn't very meaningful in isolation. The thermometer below anchors the receipts on physical landmarks: the Landauer floor (kT·ln 2 at room temperature, the lower bound for one bit of irreversible work), a single floating-point multiply-add on commodity silicon, one second of microwave, and one kilometre in an electric car.

Your last measured frame — averaged across every exhibit you've opened on this device — is plotted as the live marker (white, on the right). Each exhibit drops a cyan dot at its per-frame energy as you open it. The receipt is computed in your browser against the Landauer floor and a TDP envelope. Nothing is uploaded.

The violet dots on the left are the canonical mgai-meter receipt — one per cascade tier, baked in at build time from the substrate's pinned reading. They show where each tier's representative operation sits regardless of which device the page is viewed on.

Landauer floor 2.87×10⁻²¹ J · 1 bit erasure · 300 K one f32 FMA ~10⁻¹² J · modern silicon · representative lift 1 kg · 1 m m·g·h with m = 1 kg · h = 1 m · 9.81 J microwave · 1 s 1.2 kW × 1 s · 1.2×10³ J 1 km in an EV ~150 Wh / km · ~5.4×10⁵ J canonical · L0-closed 662.0 nJ / op canonical · L0-retrieved 64.9 nJ / op canonical · L0-identifiable 22347.3 nJ / op canonical · L1 98.4 nJ / op canonical · L2 887930.0 nJ / op no receipts on this device yet open any exhibit to populate the marker

How to read it

  • Vertical axis is energy in joules, on a log scale spanning 29 decades.
  • Each landmark is a single, neutral, physically anchored quantity. Sources: Landauer 1961 / Bennett 1982 for the floor; gravitational potential energy m·g·h for the 1 kg lift; 1.2 kW × 1 s for the microwave-second; ~150 Wh/km is in the published range for current production EVs.
  • Your frame marker is the median E_tdp / frame across every exhibit you've opened on this device, read from localStorage. The page does not upload anything; refresh after browsing more exhibits to see it shift.
  • The receipt method is tdp_estimate + landauer_floor — there is no live energy counter in a browser tab. how this is measured.