Went to check out IBM's THINK exhibit a while back. I'd definitely recommend it if you want to further you park experience. Also, it takes no real time commitment. So you can just stop by for a few minutes if you want to. And if anything, it displays what EPCOT is all about.... learning and innovation.
There are big touch-screens that show the history of technology and science. And also ones that explain currently emerging ideas (i.e. Developing a novel treatment for leukemia; and Fighting crime with data).
But the pleasantly time-consuming aspect of this exhibit is the 100 Icons of Progress. The icons grace the walls of the area, and demonstrate, quote; "...IBMers' faith in science, our restless pursuit of knowledge, and our belief that together we can make the world work better."
THINK
Presented by IBM
Innoventions
EPCOT
Walt Disney World, FL