The following videos sample the progress of SES, we assume the reader is familiar with Dr. SES based capabilities and issues revealed by X86 processor flaws in multitenant web app SaaS systems. There are more see Agoric's channel 
YOUTUBE BHIRBPOdXdw Realms vs Evaluator vs SES
YOUTUBE vm3GaWLBE1k Price of safety, Polyscript, RegExp-based fast parsing
YOUTUBE TaPot2OyXHU Bleaching the browser global object!
YOUTUBE isi6B3WJ7RQ distributed programming abstractions in JS