2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40176High precision measurements at the linear collider will allow a model- independent reconstruction of nature at high energy scales. The method of bottom-up extrapolation from the electroweak scale to the GUT scale is explained and both a universal minimal supergravity and a gaugino-mediated model are presented as examples. Comparisons are made with the LHC-only case.4 pages, 3 figures, Proc. Linear Collider Workshop 2000, FermilabHigh Energy Physics - Phenomenologytext