It has been more than 2 years since I last spoke at Hong Lim Park (have made about 20 speeches over the years, at Hong Lim Park)
My most recent speech on 24 Feb, 2022, is below
Leong Sze Hian’s keynote speech at the 9th International Research Colloguium, Manila, 24 Feb 2022
https://youtu.be/-78YwBGMLv0 https://www.facebook.com/laoliang/posts/7532074180143761