Blurry text in Arduino IDE on youtube

Why is it that the text is blurry, out of focus when you watch youtube tutorials when they show the Arduino IDE.
e.g. MATLAB Arduino Tutorial 2 - Connecting and calibrating a 3-axis accelerometer - YouTube
Or is it just for me this happens.

That is a video made by someone at MATLAB, not some official Arduino tutorial (meaning complaining over here doesn't help to get it solved).
I guess they made a screen dump and resized it.
And that's why you are missing pixels and can't read all text 100 %.
Perhaps if you happen to set your screensize to the exact same settings they used you'd get a better result, but i doubt it.

I'd go and have a look at the mentioned matlab site to find out if that has the code for download, so you don't need to type it from the youtube screen, if that's your concern.

The "360p" normal resolution of a youtube video (480x360 pixels) really isn't quite enough to show typical "80 column" computer-screen text.