The First Folds

About this Volume

The first Volume covers the foundational act of biology: folding. Sequences become shapes, and shapes do work. Peptides, then proteins, then living tissue — all the same operation at different scales.

The model designs, predicts, and reasons about folded biological structures. The book — released alongside — narrates what was found, how, and what it suggests. They open together.

On folding

A peptide is the shortest sentence biology has learned to write. A handful of amino acids in some order — a string of beads laid out by a ribosome that does not understand what it is making, and yet what it makes will mean something.

What folding does is move that text from sequence into form. The line of letters collapses into a shape, and the shape, by virtue of its shape alone, binds something — a receptor, a metal, another fold — and a function appears that nowhere existed in the sequence. Biology has been doing this for four billion years. Everything else is what folded things do to each other.

Earlier models treated this problem as a translation: letters in, shape out. They reached a ceiling. The ceiling was not in the model — it was in the framing. The next move is not better translation. The next move is folding, as the cell does it, inside an architecture that holds the rest of biology together.

The three subchapters

I.1 · The Smallest Folds. Peptides. Short chains, single-domain folds, target binding.

I.2 · The Greater Folds. Proteins. Long chains, complex topologies, multi-domain structures, allosteric mechanism.

I.3 · The Living Folds. Tissues, brain MRA, tumor architecture. Folds at the scale of organs and pathology.

What ships, when

Each subchapter ships as its own milestone — a model release plus the corresponding chapter of the book added to The First Folds. Volume I as a complete artifact is the moment all three subchapters are out. After that, Volume II opens.

This means The First Folds is being written in serial. Early readers see chapters as they come; the bound Volume is the moment of closure on the domain.

Subchapters

• I.1
  The Smallest Folds

  Peptides — design, structure, binding
  Available
• I.2
  The Greater Folds

  Proteins — long chains, complex topologies
  In progress
• I.3
  The Living Folds

  Tissues, brain MRA, tumor architecture
  Forthcoming