How Do I Determine What Is a Block for Hyper Schedule?

How do you determine what is a block for hyper schedule? This is a great question, because i feel a block can be just about anything that you want it to be. It could be a specific task that you need to get done. But one one piece of advice i would give people when they're making these blocks is not to break them up too small. The smallest block i have on my calendar is an hour. That's the smallest block i allow myselfto put on my calendar. I cap all of mine at 15 minutes. Like mike said, as you get better at the second level, blocking context is just so much easier.