Miller’s Law

The average person can only keep 7 (plus or minus 2) items in their working memory.

Key Takeaways

Chunking is an effective method of presenting groups of content in a manageable way.

Organize content in groups of 5-9 items at a time.

Origins

In 1956, George Miller asserted that the span of immediate memory and absolute judgment were both limited to around 7 pieces of information.

The main unit of information is the bit, the amount of data necessary to make a choice between two equally likely alternatives. Likewise, 4 bits of information is a decision between 16 binary alternatives (4 successive binary decisions).

The point where confusion creates an incorrect judgment is the channel capacity. In other words, the quantity of bits which can be transmitted reliably through a channel, within a certain amount of time.

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