I’d rather say it’s end of “growth at all cost” era than big tech. Businesses will go back to the basics of optimization of unit economics, being efficient, steady growth and such. Which on the contrary means more emphasis on tech, not less.

Remember that much of the tech foundations for 2010s success were laid in mid to late 2000s. I saw it from within Amazon as AWS was building the core infrastructure components that went on to become independent services in 2010s. So I expect 2020s to go through similar phase. Maybe AI? Robotics? VR/AR? I don’t know.