Support vs. Containment
Web 2.0 architectures were Walled Gardens: beautiful, curated spaces designed to keep users inside so their attention could be monetized. The structure was containment.
Web4 (Myceloom) architectures are Trellises. They provide necessary structure (identity, payment rails, data storage) that allows independent applications ("vines") to climb higher than they could alone. The trellis does not care which way the vine grows, only that it is supported.
Loosely Coupled Systems
A trellis works because it is "loosely coupled" with the plant. The plant can be removed or replaced without destroying the trellis. Similarly, Trellis Structures in software rely on modularity and Boundary Resources that allow components to be swapped. This prevents lock-in and fosters a healthier ecosystem.
Invisible Infrastructure
The best trellis is eventually invisible, covered by the thriving life it supports. The goal of Myceloom infrastructure is to recede into the background, becoming a "ubiquitous utility" that empowers user creativity rather than demanding user attention.