- gtd involves identifying the next physical action related to an outcome. - you can have multiple “[[{4.4b} next actions in gtd|next actions]]” for a given [[{4.4c} projects in gtd|project]] as long as they can be worked in *parallel* and not *sequentially*. - that is, if the tasks do not have to wait on each other, do not feed into each other, or rely on each other. - for example, if i have a project to `get new glasses`, both `find glass script` and `browse zenni for frames` could both be on my next actions list because i don’t need the script for research and vice versa. - however, i would not have `find glasses script` and `place order for glasses` on my next actions list at the same time because i need find my prescription *before* placing an order.