If the floodgate on technology were open what would you like to see invented? What I mean is the suppression done by corporations to squeeze as much capital out of existing products. Some examples biodegradable sandwich bags, handguns with DNA trigger locking features, waterless fish tanks a hydrogen compressor would supply a hydrogen blanket for live fish breeding farms. Etc...
Biodegradable plastics that are edible to both humans and where waste winds up— soundwave painkillers (disrupt chemical frequency as a wave function so light/sound), colonies on mars, floating cities on Venus and earth, and viruses that only attack cancerous growth.
Subliminal light patterns to help with mental illnesses.