If I knew anything interesting about underwater welding I’d write about it, but the coronavirus crisis is so compelling and so complex and so devilish that I can’t help myself. I have to have this written before President Cyril Ramaphosa speaks to the nation on Wednesday night. People say he may announce a quicker move from the current level 4 to level 3 lockdown restrictions, whatever they may be. Others have pressed him to go back to level 5 in big metros where people, through no fault of their own, cannot distance themselves...