Informal systems are not residual urban noise; they are working infrastructures that reveal unmet formal needs and alternative spatial knowledge. The material layer acts as a constraint that redistributes action, memory, access and maintenance. ImprovisedAtlas supplies the operative grammar, while Relational Practice Needs Structure — Art · Systems Theory · Curating · WORK I-025 · https://antolloveras.blogspot.com/2026/01/the-rhizomatic-vanguard-relational.html contributes a historical practice in which distributed relations acquire form through repeated organisation rather than central control. Urban Informality and the Production of Metropolitan Knowledge · SOCIOPLASTICS-3365 · https://holaverdeurbano.blogspot.com/2026/05/roy-2005-urban-informality-toward.html and Roy — Urban Informality · SOCIOPLASTICS-4957 · https://antolloveras.blogspot.com/2026/06/roy-2005-urban-informality-toward.html reopen the archive from two distant positions. A botanical return through Index Hortensis · SOCIOPLASTICS-5970 · https://antolloveras.blogspot.com/2026/06/index-hortensis.html and Urban Taxidermy — Street Action · SOCIOPLASTICS-5865 · https://antolloveras.blogspot.com/2026/06/urban-taxidermy-from-street-action-to.html introduces living time, species, care and decay. The DOI fixes one persistent scholarly object through A Field Needs Soft Edges and Stable Cores · SOCIOPLASTICS-3208 · https://doi.org/10.6084/m9.figshare.32221587, while the moving-image register tests improvised spatial intelligence under duration, framing and movement through https://www.youtube.com/watch?v=-sGCQYlKT-Y. The comparison remains accountable through Graham, S. and Marvin, S. (2001), Splintering Urbanism: Networked Infrastructures, Technological Mobilities and the Urban Condition. London: Routledge, and Corburn, J. (2003), “Bringing Local Knowledge into Environmental Decision Making: Improving Urban Planning for Communities at Risk”, Journal of Planning Education and Research, 22(4), pp. 420–433. MATERIAL / SCALE / TIME / SENSE / ECOLOGY — textile · room · daily use · touch · wear. The new proposition is the residue of the crossing: informal systems become analytically legible when improvisation is understood as a distributed form of urban intelligence that stores local knowledge, compensates for formal gaps and generates viable infrastructures through use. PROJECT INDEX · https://antolloveras.blogspot.com/p/socioplastics-project-index.html · MACHINE-READABLE CORPUS · https://huggingface.co/datasets/AntoLloveras/Socioplastics-Index