Phoenix (demonstration)

The pool surround nobody can cross barefoot

DemonstrationEdit the plan

When the route to the water is open for crossing barefoot

Each month read on its 15th · 2026
Crossing it barefoot, through the year. The route to the water is open for crossing barefoot 11:00 AM to 6:00 PM, October to March. It opens at different hours April, May to June and August to September. Shut July. 11 months open, 1 shut, 0 unanswered.JanFebMarAprMayJunJulAugSepOctNovDec11months open
  • Works
  • Tight
  • No
  • Unanswered

Rings run from 9 am at the centre to 8 pm at the edge.

The route to the water is open for crossing barefoot 11:00 AM to 6:00 PM, October to March. It opens at different hours April, May to June and August to September. Shut July.

  • October to March: open 11:00 AM to 6:00 PM. It carries on past 6:00 PM, which is later than most people do this.
  • April: open 2:00 PM to 6:00 PM. It carries on past 6:00 PM, which is later than most people do this.
  • May to June: open 5:00 PM to 6:00 PM. It carries on past 6:00 PM, which is later than most people do this.
  • July: shut for crossing barefoot. Surface heat is what stops it.
  • August to September: open 5:00 PM to 6:00 PM. It carries on past 6:00 PM, which is later than most people do this.

The shut months are shut for one reason: surface heat. That is the thing to change if you want the season longer, and it is a different job from making the open months better.

The same year as a table
MonthOpenUsable hoursWhat decides it
January11:00 AM–6:00 PM7 hStill usable afterwards
February11:00 AM–6:00 PM7 hStill usable afterwards
March11:00 AM–6:00 PM7 hStill usable afterwards
April2:00 PM–6:00 PM4 hStill usable afterwards
May4:00 PM–6:00 PM2 hStill usable afterwards
June5:00 PM–6:00 PM1 hStill usable afterwards
JulyshutSurface heat stops it
August5:00 PM–6:00 PM1 hStill usable afterwards
September4:00 PM–6:00 PM2 hStill usable afterwards
October11:00 AM–6:00 PM7 hStill usable afterwards
November11:00 AM–6:00 PM7 hStill usable afterwards
December11:00 AM–6:00 PM7 hStill usable afterwards
The house13.8 ftBlock wall6.2 ftThe route to the waterThe lounger0° upN16 ft
BuildingNot yoursCanopyShadow nowCan see inProposed

Reading at

6:33 PM·September
September 14 · The route to the water

The evidence behind this whole day is thin, so nothing on the strip is marked out as worse than the rest. The shape of the day is still the model’s best reading; the confidence in it is low, and it stays low until something it needs is measured.

The route to the water is open for crossing barefoot 12:00 AM to 10:30 AM and again 4:00 PM to 11:30 PM.

About 18 hours in September, and surface heat is what closes it.

The same day as a table
The same day hour by hour, in text.
HourSunVerdictConfidenceSun position
12:00 AMdarkWorksa starting hypothesis
3:00 AMdarkWorksa starting hypothesis
6:00 AMdarkWorksa starting hypothesis
7:00 AMin sunWorksa starting hypothesis9° up, bearing 92°
8:00 AMin sunWorksa starting hypothesis22° up, bearing 101°
9:00 AMin sunWorksa starting hypothesis34° up, bearing 111°
10:00 AMin sunWorksa starting hypothesis45° up, bearing 124°
11:00 AMin sunNoa starting hypothesis54° up, bearing 143°
12:00 PMin sunNoa starting hypothesis59° up, bearing 168°
1:00 PMin sunNoa starting hypothesis59° up, bearing 198°
2:00 PMin sunNoa starting hypothesis52° up, bearing 222°
3:00 PMin sunNoa starting hypothesis43° up, bearing 239°
4:00 PMin sunTighta starting hypothesis31° up, bearing 251°
5:00 PMin sunWorksa starting hypothesis19° up, bearing 261°
6:00 PMin sunWorksa starting hypothesis7° up, bearing 269°
9:00 PMdarkWorksa starting hypothesis

Ten seconds, no shoes, between the door and the water.

Crossing it barefoot

The route to the water works for crossing barefoot at this hour.

  • Direct sun is15 over100 / 100 against at most 85

    Sun on the crossing is only a problem because of what it has done to the slab for the last four hours.

Confidence low (37%). Treat this as a starting hypothesis, not an answer.

What this answer was built from
  • Use
    Crossing it barefoot
  • Place
    The route to the water
  • Weather
    Hot desert, brutal summers, almost no cloud (scenario shape), scenario (from a published source)
  • Method
    Traced geometry and radiation at this hour, measured against what this use needs
  • How well this place is described

    Mapped
    1. Quick
    2. Mapped
    3. Annotated
    4. Measured

    Shade, sky view and daily light are computed from real geometry rather than assumed. This is the rung at which the product starts telling you things you did not already know.

    It cannot answer who can see in, and it cannot tell you whether the heights it is using are the real ones.

    To reach Annotated

    • Photographs of the actual place: None annotated. A photograph is how a drawn height gets checked against a real one.
    • Photographs that know where they were taken from: No photograph has a position and a bearing, so what is marked on them cannot become a measurement.
    • Who can see in: Nobody marked. Privacy is a question about who sees in from where, and the product will not invent one.

    What that buys: The privacy question, and a check on the geometry. Most inferred heights are wrong by enough to matter, and a photograph settles it in a minute.

    Everything that was checked
    • Quick A place on the earth: Phoenix (demonstration), with a time zone, which is what makes an hour an hour.
    • Quick Somewhere to read: 2 spots marked. A reading is a height at a place, and moving it moves the answer.
    • Mapped The things in the way: 2 objects drawn. The house counts, and so does the neighbour's.
    • Mapped What is underfoot: 2 of 2 readings sit on a mapped surface.
    • Mapped Where the property ends: Drawn, so the product can tell you when the cheapest fix stands on someone else's land.
    • Annotated Photographs of the actual place: None annotated. A photograph is how a drawn height gets checked against a real one.
    • Annotated Photographs that know where they were taken from: No photograph has a position and a bearing, so what is marked on them cannot become a measurement.
    • Annotated Who can see in: Nobody marked. Privacy is a question about who sees in from where, and the product will not invent one.
    • Measured Heights off a tape: 0 of 2 objects are measured. The remaining 2 are this product's own inference, so no figure here is a survey figure yet.
    • Measured Something checked against the day: Nothing has been checked against a real afternoon. The model is unopposed, which is not the same as being right.

    What to measure next

    Ranked by how far the answer moves, not by a checklist
    1. 1Who can actually see inSit in the chair

      Sit where you actually sit and look around. Mark the one window or path you can see a person from. Until one exists, privacy is a question we are not answering rather than one that is fine.

      This is not a refinement. Nothing can answer this question until somebody marks it.

      Currently assuming: nobody is overlooking this. Tested across one confirmed observer changes the whole privacy answer.

    2. 2What you are looking atSit in the chair

      Mark the direction of the view worth keeping. Without it, every screening recommendation is optimising against nothing.

      This is not a refinement. Nothing can answer this question until somebody marks it.

      Currently assuming: no view is being protected. Tested across one corridor changes what screening is worth doing.

    3. 3Which way the seat facesSit in the chairGlare ±58

      Sit in the chair and note which way you are looking. Glare is entirely about that, and nothing else in the model can guess it.

      The overall verdict does not move, but glare changes by 58 points, so it matters for that question specifically.

      0 degrees → works 97 · 90 degrees → works 97 · 180 degrees → works 97 · 270 degrees → works 97

      Currently assuming: facing the most open direction. Tested across any bearing.

    What the place is doing at 6:33pm in September

    Hot desert, brutal summers, almost no cloud (scenario shape).

    What it feels like

    warm

    85.6°F

    Felt temperature · 65 on the reporting scale

    It feels about 9 degrees cooler than the air, near 86°F.

    What is doing it

    • How much sky is overhead

      0.7°
    How this was worked out
  • Air
    95.1°F from Hot desert, brutal summers, almost no cloud (scenario shape), scenario (from a published source)
  • Radiant
    78.7°F mean radiant temperature
  • Method
    Six-directional radiation integration, then ASHRAE operative temperature (from a published source)
  • Direct sun

    in sun

    0 W/m²

    Beam reaching this point · 100 on the reporting scale

    Direct sun is on this spot right now.

    How this was worked out
  • Sun
    0deg up, bearing 274deg
  • Traced
    100% of the beam reaches this point
  • Glare

    none

    0

    out of 100

    Nothing bright is in the line of sight at this hour.

    How this was worked out
  • Facing
    126deg (assumed, not measured)
  • Assumed
    Which way the seat faces has not been set, so glare is estimated from the open direction. (assumed, not measured)
  • Privacy exposure

    Unanswered

    No observer has been placed yet. Privacy is a question about who can see in from where, and until one is marked there is nothing to answer.

    Wind

    still

    0.7 mph

    Wind at the seat · 4 on the reporting scale

    Wind here is still.

    How this was worked out
  • Reference
    5.6 mph at 10 m from Hot desert, brutal summers, almost no cloud (scenario shape), scenario (from a published source)
  • At seat height
    0.7 mph before shelter
  • Shelter
    0% removed by what stands upwind
  • View

    Unanswered

    No view worth keeping has been marked, so there is nothing to weigh a screen against yet.

    Surface heat

    comfortable

    95.1°F

    Surface temperature · 40 on the reporting scale

    The surface is running about 95°F.

    How this was worked out
  • Surface
    Pool deck
  • Method
    Absorbed shortwave against air temperature, flattened by air movement (from a published source)
  • Wetness

    dries-fast

    1 x

    Drying time against the open · 10 on the reporting scale

    Still air here; moving air does a surprising amount of the drying.

    How this was worked out
  • Drying rate
    0.000 in/hour here
  • Method
    Penman combination equation on the radiation and air actually reaching this spot (from a published source)
  • Light after dark

    daylight

    0

    out of 100

    Artificial light is not doing anything at this hour.

    How this was worked out
  • Sun
    still up
  • Ask something else about this place

    Everything on the plan, in text
    ThingReadingNote
    The house13.8 ft100 per cent solid.
    Block wall6.2 ft100 per cent solid.