5:35 interview with Bloomberg TV. Click on “Related Video and Graphics” to the left to launch video player.

Analysis
Mental acuity: Lee gives a lucid and convincing explanation of why GIC is investing in banks that have made massive losses. Delivery is slow, and there are occasional pauses while he searches for the right word, but no obvious slip-ups.
Physical health: Lee appears a little tired, but otherwise fine.

Note: This was not a live interview, so the extent to which it has been edited is unclear. Interviewers given access to the Old Man are carefully vetted and questions are usually submitted in advance.