Linked post from John Gruber, focused on the definition of the word “cursor”. What we typically think of as a cursor:

• The icon that moves around on the screen that you control with your mouse or trackpad.
• The vertical bar that blinks in a text editing field to indicate where typed characters will appear.

Gruber makes the case that we should use these terms, to be more precise:

• Mouse/trackpad pointer.
• Insertion point.

Read the piece. Very interesting, solid logic, well researched.