What Must We Invent for Tomorrow? Five Critical Forces That Will Challenge the U.S. Learning Community (and Perhaps Yours) to Innovate for the Future. What Must We Invent for Tomorrow? Five Critical Forces That Will Challenge the U.S. Learning Community (and Perhaps Yours) to Innovate for the Future. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to print (Opens in new window)MoreClick to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)