Life in United Kingdom

The Covid-19 pandemic and lockdown measures put in place in most countries provide a great opportunity to online studies. Below is a list of online course providers, many of them are offering learning content for free during Covid-19. Normally, verified certificates (after you complete a course) require a fee but some teaching materials are free. I rank them based on number of free courses they offer, the range of subject areas, and their reputation.1.edX (US) is the best free online course provider and the second largest MOOC provider in the world. It doesn’t have as many courses available as Coursera, but all edX courses can be audited for free because edX is a non-profit organisation. It focuses on natural sciences and humanities. Popular subject areas are languages and computer science.2.Coursera (US) is the largest MOOC provider in the world. Coursera offers over 1,000 free courses across 11 subject areas on beginner, intermediate, mixed and advanced levels. The reason I rank it …

Bleeding edge is more advanced and pioneer than cutting edge. It has higher risk because of unproven nature of an innovation and the unreliability of a new technology. 

An analogy is that the tip of a knife is the bleeding edge and the blade of a knife is the cutting edge. The tip pierces and breaks through. The cutting edge is the part of the knife that does most of the work. Innovation is not about the cutting edge. It is about the bleeding edge, where boundary has not yet been broken.