On June 25, 2017, Dr. Steven Chu’s keynote address to the attendees of the 2017 Lindau Nobel Laureate Meeting was presented by his colleague, Dr. W. Moerner. The written text of the speech can be downloaded from the References at my book website (Keynote-Steven-Chu-LiNo17-25-June-2017.pdf, file size 107703 bytes).
Of course, a keynote address to any gathering of importance is normally a speech that covers a wide ground, ranging from past findings to future (not necessarily futuristic) ideas, fields that ought to receive more research interest, potential developments and so forth.
