A tiny embryo might 'remember' how to build a body just by using physical tension, almost like muscle memory for a single cell.
March 20, 2026
Original Paper
Mechanical cues for totipotency and the preneural state: embryo and cancer expanding the frontiers of developmental physics
arXiv · 2603.18293
The Takeaway
While we usually think of biological development as a purely genetic program, this paper argues that the first cell of an embryo stores a persistent 'mechanical record' of an animal's entire shape. It suggests that physical forces—not just DNA—are the primary drivers that tell cells how to organize into complex structures like a nervous system.
From the abstract
In this article, I advance the idea that physics plays a central role in cell differentiation and makes fundamental contributions to morphogenesis, revealing the totipotent nature of the zygote. Totipotency is a persistent mechanical memory that preserves the biomechanical records of animal morphogenesis. I examine the mechanical and biophysical pathways underlying cell differentiation in embryonic development and cancer, treating them as closely related biological and mechanical processes. Draw