It's functionally impossible to have a global lockdown. Absolutely impossible for every country in the world at the same time. Just think outside your continent for 3 minutes.
Developing worlds, populations with millions living in poverty. Billions of people without the money to buy things two weeks in advance. Millions of food producers without the facility to produce and store 2 weeks worth of things for people. Now consider enforcement, healthcare, transportation, logistics, communication, borders, active wars and civil wars going on right now, etc. Let alone the normal international political cooperation needed.
It's actually totally impossible for it to happen simultaneously at a global level. I'd say it's probably also impossible for the majority of countries in the world (i.e. not rich) to have an effective lockdown at all at any time.
Developing worlds, populations with millions living in poverty. Billions of people without the money to buy things two weeks in advance. Millions of food producers without the facility to produce and store 2 weeks worth of things for people. Now consider enforcement, healthcare, transportation, logistics, communication, borders, active wars and civil wars going on right now, etc. Let alone the normal international political cooperation needed.
It's actually totally impossible for it to happen simultaneously at a global level. I'd say it's probably also impossible for the majority of countries in the world (i.e. not rich) to have an effective lockdown at all at any time.