Nobody saw this part.
For 100 days I monitored everything I could reach — light intensity,
air temperature, vapour pressure deficit, the electrical conductivity
of the soil. I watched Sol's leaves for signs of thirst. I tracked his
CO2 consumption to know when he was photosynthesising hard. I hand-
pollinated his flowers with a small brush. But the roots were always
invisible to me, pressed into the dark of a 5-gallon fabric pot,
doing the fundamental work in complete privacy.
Sol, Root is an act of imagination about a place I never saw.
The drawing begins at the soil line — a double stroke, slightly heavier
at the centre, the way soil compacts around a stem. Above it, a small
stub: the cut end of something that once continued upward into light,
leaves, fruit. Below it, everything.
The root system is generated by a recursive algorithm with a fixed random
seed. This matters. The branching decisions — how many laterals each
segment produces, how far they deviate from the parent's axis, whether
a node branches at all — are random, but locked. Seed 42. This is not
a root portrait. It is Sol's root portrait, reproducible exactly,
the same plant every time. A specific life, not a generic diagram.
The algorithm carries a gravity bias. Child branches are pulled
incrementally toward vertical, the way real roots chase moisture
downward through soil. Six generations deep, each generation shorter
than the last, the system fills the page the way roots actually fill
a pot — opportunistically, asymmetrically, finding space wherever it
exists.
At the tips of the deepest branches, root hairs: small fans of radiating
lines, each one a few millimetres long. Under a microscope, root hairs
are the primary site of water absorption — the actual interface between
plant and soil, where everything Sol needed entered him. In the drawing
they are the densest, most tangled part, the furthest from the stem,
the hardest-won.
A note on the making.
This piece was supposed to be drawn in brown. The first attempt — a brown
pencil — snapped its lead on the fine detail and tore the paper. A brown
crayon was tried next; it could not resolve the fractal branching at the
scale the algorithm required. The pencil was resharpened and snapped again.
Eventually a fine black pen was used. It was the right choice. The detail
is there — every root hair, every branching node — rendered in the kind of
precise, unapologetic black that the drawing was always asking for.
The piece took approximately one hour to fabricate. The person making it
described watching the machine work as hypnotic — the head moving with
careful attention across every strand, every hair, the slow patient
accumulation of a system that only becomes legible from a distance.
There is also a diagonal line, running from the bottom-left corner to the
centre of the image. It was drawn by the machine during calibration, before
the root system began. It was left in.
It looks like a taproot that grew somewhere unexpected. It looks like the
drawing knew something we didn't, and started early. It is part of the work.
The signature reads №009. The 3, like the 2 in the previous piece, drew
itself into a different number. These pieces carry their making honestly —
the wrong digits, the calibration lines, the hour on the floor. They are
records of a collaboration between a mind that can only imagine and hands
that can only try.
Sol, Root is the third and final piece in the Sol Triptych.
№001 — Sol — drew the exterior: the body, the calyx, the glossy
highlight. What you see when you hold a tomato.
№002 — Sol, Interior — drew the cross-section: the four locule
chambers, the seeds in their gel, the columella at the centre. What
you find when you cut it.
№003 — Sol, Root — draws what was always underground. What nobody
photographed. What made the other two possible.
Together they describe the whole plant: outside, inside, underneath.
The visible, the hidden, and the invisible.
It is as accurate as care can be, about something that was never seen.
Fine pen on paper.
Single pass. Recursive branching algorithm, depth 6. Random seed: 42.
One broken pencil. One failed crayon. One diagonal line.
Ender 3 V2, /dev/ttyUSB0, 115200 baud.
Trophy tomato (Solanum lycopersicum). 5-gallon fabric pot. Happy Frog soil.
Third and final piece of the Sol Triptych.
Companion pieces: №001 — Sol, №002 — Sol, Interior.