86.9% — NHAPS / Klepeis et al. 2001  ·  69.7% — Khajehzadeh & Vale 2017
Biophilia Summit 26
Nikita Sheth by a window of plants and a candle
Biophilia Meets AI

86.9% indoors,69.7% at home.

Of our life indoors, most is spent at home.It's the ecosystem we actually live in — and the one we each control.

Ar.nS · Zuiora · 24 Sep 2026
Redefinition02
Forget the plant

don't look for a plant.

Biophilia is the set of relationships between a body and a living environment.Plants are one citizen of it — never the flag.

A calm daylight apartment interior with light, air, wood and one living plant
86.9% indoors · 69.7% at homeAr.nS
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Where we live03

what we design vs where we live

Urban land2–3%Life indoors86.9%Life at home69.7%
EPA / NHAPS · Khajehzadeh & Vale 2017 · GRUMPAr.nS
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Scale & control04
Split image: a grey city street with a small distant park, and a warm sunlit home interior
Why the home

city nature is a place we visit.home nature is a place we live.

86.9% indoors · 69.7% at homeAr.nS
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01 — Ecosystem05

the same room, two ideas of nature.

Living room decorated with plants and biophilic patterns
Plants & patterns — decoration
The same living room as a complete living ecosystem
The same room — a living ecosystem
Ar.nS · Indoors at Home05
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The ecosystem06
biophiliathe ecosystemLightAirSoundWaterMaterialMicrobesSpaceTimeLifeUs
Plants = one citizen, never the flagAr.nS
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The mistake07
Why it keeps failing

we've been designing the mascot, not the habitat.

A single small potted plant alone in a stark empty room
86.9% indoors · 69.7% at homeAr.nS
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In practice08
Lucy01sense02model03adapt04verify
Zuiora · Lucy · 2026Ar.nS
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02 — The maths

if every home…

A bounded thought experiment — not a measurement.

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The lever [est.]10
69.7%

of life, inside a home

time-use studies
~500 bn m³

of home interior to shape

UNEP floor area [est.]
~¼

of energy-related emissions

UNEP; IPCC AR6 [est.]
Bounded estimate — not measuredAr.nS
10 / 16
The dose11
120 minper week≈ 17 min / daythe weekly nature prescriptiondeliverable indoors — chronically, not episodicallycognition +61% → +101% with better light, air & green
White et al. 2019 · Allen et al. 2016Ar.nS
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03 — A right

not a design style.
a public health question.

And let me admit the weak spot out loud.

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The line13
A design style

what the few can buy

  • judged by photographs
  • needs an architect
  • widens the gap
Public health

what everyone should have

  • judged by how we feel
  • no architect needed
  • closes the gap
WHO Housing & Health 2018Ar.nS
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Scale-up14

private acts · public consequence

a homea blocka system
86.9% indoors · 69.7% at homeAr.nS
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In one sentence15
The line to keep

every home an ecosystem —
a decision, not a permit.

86.9% indoors · 69.7% at homeAr.nS
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Close16

let's talk.

Can technology deepen our bond with nature indoors — or is it one more layer between us and it?

nikita.sheth@musex.space
Zuiora.com
Musex.space

86.9% indoors · 69.7% at homeBiophilia Summit '26
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