Who was on the video?

Question

Video

Hello.
The help of regular readers of Habrahabr is needed. There was an article (about a year and a half ago), there were video clips in it. The videos are about half an hour long. The first time I decided to look at such a long one and did not wish. Content - a man (programmer) in English (there was a translation) showed the products of his company and talked about his vision of the software. At first, he showed an application for the iPad that makes a video, which worked unusually, it recorded your actions with an object, you could scroll again, change something online. Another example was how to write games. On the left was a window with the code, on the right - a window with the result. On the right, he put play and, for example, the little man started to jump, on the left in the code, he measured his size, jump strength, height, and this was immediately displayed on the right. And another example is how to make electrical circuits,
I spent a ton of time searching for this article, I just can’t find it (I really need it - maybe someone remembers / knows what I’m talking about?)
Thank you.