Milestones are significant for us, not just because they’re big numbers, but because they reflect the actions of people around the world using Skype to stay in touch with friends, family and colleagues. Right now, there are 20 million people around the world, saying hello (or bonjour, or hola, or 喂, or tere) to their parents across continents, having dinner with their spouses from hotel rooms across countries, and keeping an eye on their pets from across town.

But big numbers are hard to get our heads around – what does 20 million actually mean? We can think about it in terms of the number of families kept closer together, or the number of businesses saving money and staying ahead of the competition. Right now. The number of new babies being shown off to adoring grandparents, or the number of romances being kept alive. Right now.

In fact, in the 30 seconds since you started reading this, those 20 million people have made around 1,600 hours of free Skype-to-Skype calls and 200 hours of calls to landlines and mobiles. That’s a lot of people talking. Right now.

New record: 20 million people on Skype at the same time