Your edit summary in this edit makes it appear that you think you are disagreeing with what was in the article before that edit. But it said "but which require extensive creative thinking." That may not be the best way of phrasing it, but it makes it clear that the problems are challenging and not routine. Michael Hardy ( talk) 20:48, 2 January 2019 (UTC)
Your edit summary in this edit makes it appear that you think you are disagreeing with what was in the article before that edit. But it said "but which require extensive creative thinking." That may not be the best way of phrasing it, but it makes it clear that the problems are challenging and not routine. Michael Hardy ( talk) 20:48, 2 January 2019 (UTC)