Los Angeles (demonstration)

The patio that disappears into its own glass after dark

DemonstrationEdit the plan

When outdoor sofa is open for sitting out after dark

Each month read on its 15th · 2026
Sit outside after dark, through the year. Outdoor sofa cannot be read for sitting out after dark in any month yet. 0 months open, 0 shut, 12 unanswered.JanFebMarAprMayJunJulAugSepOctNovDec0months open
  • Works
  • Tight
  • No
  • Unanswered

Rings run from 6 pm at the centre to 11 pm at the edge.

Outdoor sofa cannot be read for sitting out after dark in any month yet.

  • All year: cannot be answered, because privacy exposure has not been recorded here.
The same year as a table
MonthOpenUsable hoursWhat decides it
JanuaryPrivacy exposure closes it
FebruaryPrivacy exposure closes it
MarchPrivacy exposure closes it
AprilPrivacy exposure closes it
MayPrivacy exposure closes it
JunePrivacy exposure closes it
JulyPrivacy exposure closes it
AugustPrivacy exposure closes it
SeptemberPrivacy exposure closes it
OctoberPrivacy exposure closes it
NovemberPrivacy exposure closes it
DecemberPrivacy exposure closes it
Garden after darkHouse19 ftOutdoor sofa8° upN16 ft
BuildingNot yoursCanopyShadow nowCan see inProposed

Reading at

6:34 PM·September
September 14 · Outdoor sofa

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.

Outdoor sofa cannot be answered for sitting out after dark yet.

Nothing in September clears what sitting out after dark needs here.

The same day as a table
The same day hour by hour, in text.
HourSunVerdictConfidenceSun position
12:00 AMdarkUnanswereda starting hypothesis
3:00 AMdarkUnanswereda starting hypothesis
6:00 AMdarkUnanswereda starting hypothesis
7:00 AMin sunUnanswereda starting hypothesis2° up, bearing 87°
8:00 AMin sunUnanswereda starting hypothesis12° up, bearing 98°
9:00 AMin sunUnanswereda starting hypothesis21° up, bearing 110°
10:00 AMin sunUnanswereda starting hypothesis31° up, bearing 123°
11:00 AMin sunUnanswereda starting hypothesis38° up, bearing 139°
12:00 PMin sunUnanswereda starting hypothesis43° up, bearing 157°
1:00 PMin sunUnanswereda starting hypothesis46° up, bearing 178°
2:00 PMin sunUnanswereda starting hypothesis44° up, bearing 199°
3:00 PMin sunUnanswereda starting hypothesis39° up, bearing 218°
4:00 PMin sunUnanswereda starting hypothesis32° up, bearing 234°
5:00 PMin sunUnanswereda starting hypothesis23° up, bearing 248°
6:00 PMin sunUnanswereda starting hypothesis13° up, bearing 260°
7:00 PMin sunUnanswereda starting hypothesis3° up, bearing 271°
9:00 PMdarkUnanswereda starting hypothesis

The hour after the light goes, when glass turns to mirror and every lamp changes the sightline.

Sit outside after dark

We cannot say yet whether Outdoor sofa works for sitting out after dark, because privacy exposure is still unanswered.

Still unanswered:Privacy exposure

Confidence low (43%). Treat this as a starting hypothesis, not an answer.

What this answer was built from
  • Use
    Sit outside after dark
  • Place
    Outdoor sofa
  • Weather
    Temperate maritime, mild, grey, damp (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

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

    The sun can be placed. Angles, sunrise and sunset, and the shape of the day are right, and everything that depends on what stands in the way is a guess.

    It cannot tell you when your patio is in shade, because nothing has been drawn that could cast any.

    To reach Mapped

    • The things in the way: 1 object drawn. The house counts, and so does the neighbour's.

    What that buys: Real shade. The difference between being told the sun is up at five and being told your table is in shadow from four.

    Everything that was checked
    • Quick A place on the earth: Los Angeles (demonstration), with a time zone, which is what makes an hour an hour.
    • Quick Somewhere to read: 1 spot marked. A reading is a height at a place, and moving it moves the answer.
    • Mapped The things in the way: 1 object drawn. The house counts, and so does the neighbour's.
    • Mapped What is underfoot: 1 of 1 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: All 1 objects are marked as measured.
    • 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.

    What the place is doing at 6:34pm in September

    Temperate maritime, mild, grey, damp (scenario shape).

    What it feels like

    comfortable

    63°F

    Felt temperature · 33 on the reporting scale

    It feels about what the thermometer says, roughly 63°F.

    What is doing it

    • How much sky is overhead

      1.8°
    • Direct sun on the seat

      +1.4°
    How this was worked out
  • Air
    63.6°F from Temperate maritime, mild, grey, damp (scenario shape), scenario (from a published source)
  • Radiant
    61.1°F mean radiant temperature
  • Method
    Six-directional radiation integration, then ASHRAE operative temperature (from a published source)
  • Direct sun

    in sun

    9 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
    8deg up, bearing 266deg
  • 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
    5deg
  • 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

    light

    2.9 mph

    Wind at the seat · 14 on the reporting scale

    Wind here is light.

    How this was worked out
  • Reference
    9.2 mph at 10 m from Temperate maritime, mild, grey, damp (scenario shape), scenario (from a published source)
  • At seat height
    2.9 mph before shelter
  • Shelter
    0% removed by what stands upwind
  • View

    open

    100

    out of 100

    The view from this seat is essentially intact.

    What is doing it

    • Garden after dark

      +100
    How this was worked out
  • Corridors
    Garden after dark
  • Method
    Rays sampled across each corridor's angular window
  • Surface heat

    comfortable

    66.2°F

    Surface temperature · 8 on the reporting scale

    The surface is running about 66°F.

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

    dries-fast

    0.4 x

    Drying time against the open · 13 on the reporting scale

    Sun and air movement here are enough to dry the surface at an ordinary rate.

    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
    House19 ft100 per cent solid.