This Broad Agency Announcement (BAA) seeks revolutionary research ideas for topics not being addressed by ongoing IPTO programs or other published solicitations. Potential proposers are highly encouraged to visit the IPTO technical office page (https://www.darpa.mil/about/offices/ipto) to view current and upcoming IPTO programs and solicitations in order to avoid proposing efforts that duplicate existing activities or that are responsive to other published IPTO solicitations.