What Happened to the Beatles in India?

Back in 1968, the Beatles visited India to expand their consciousness. During the trip, George and John stayed. Paul and Ringo left early.

India Trip Length of Time:
Ringo was there for 11 days
Paul was there for 5 weeks
George was there for 8 weeks
John was there for 8 weeks

Is it just a coincidence that both George and John are no longer with us, while Paul and Ringo are still performing?

Both Ringo Starr and Paul McCartney recently released new albums.