Intellectuals warn the Communist Party faces a crisis of legitimacy that could lead to its collapse: Letitia Wong - It's time to get well prepared for the CCP's imminent collapse. No illegitimate regime could survive that long. Did the CCP learn some lessons from Mubarak, Gaddafi and possibly Assad? Margaret Wong - The Assad government is believed to have killed 3,000 of its own people and tortured and injured tens of thousands more in its desperate attempt to cling to power. The Syrian government might also lose control of its extensive stockpiles of chemical and biological weapons to Hezbollah terrorists. The number of deaths in Egypt and Libya are even more. If there's one lesson the CCP can learn from the Arab revolution, it is to avoid killing its own people. Bjorn Berg - One can only guess what kind of lesson the CCP will draw from all this. On the one hand, state violence has done little to nothing to halt the uprisings in the Arab world. On the other, state violence in China has paid off on numerous occasions, which could bolster the CCP's belief that it is a viable option even now. No way to really know until things reach such a critical point - which hopefully won't happen. Patrick Shu Wing-lee - If people can win by peaceful demonstration, tragedies can be avoided. Action has been urged to protect historic sites in Hong Kong: Hann? Han - Often repairs of old stone/granite walls and staircases are done shoddily as well. Look at the steps on Chancery Lane/Arbuthnot Road. A team should be set up just to take care of repairs. On plans for a Ferris wheel at Central harbourfront: Peter Fung - The idea is absurd. Without being able to rise above all adjacent buildings, there is nothing to see.