A first part of this review is devoted to a summary of our extensive studies
of the discovery potential for instanton(I)-induced, deep-inelastic processes
at HERA. Included are some key issues about I-perturbation theory, an
exploitation of crucial lattice constraints and a status report about the
recent I-search results by the HERA collaborations H1 and ZEUS in relation to
our predictions. Next follows a brief outline of an ongoing project concerning
a broad exploration of the discovery potential for hard instanton processes at
the LHC. I then turn to an overview of our work on high-energy processes,
involving larger-sized instantons. I shall mainly focus on the phenomenon of
saturation at small Bjorken-x from an instanton perspective. In such a
framework, the saturation scale is associated with the conspicuous average
instanton size (~0.5 fm), as known from lattice simulations. Another central
and intriguing result is the identification of the "Colour Glass Condensate"
with the QCD sphaleron state.Comment: 14 pages,14 figures, Invited plenary talk presented at the CERN -
DESY Workshop 2004/2005, "HERA and the LHC