Visual roadmaps vs. flat task lists: when graphs win
Most planning tools flatten work into rows. Real projects branch and depend on each other — and that structure is exactly what a graph keeps and a list throws away.
A task list answers "what is left?" but rarely "what unblocks what?". As soon as work has dependencies, parallel tracks, or research that forks, a flat list starts hiding the very relationships you need to plan around.
Where lists break down
Lists imply a single order. But a launch might need design, infra and legal to progress in parallel, converging only at the end. Encoding that in a list means manual reordering and mental bookkeeping every time something moves.
A directed graph (DAG) makes the dependency explicit: each node is a piece of work, each edge is "must come before". You see critical paths, not just a backlog.
When a graph wins
Reach for a visual roadmap when work branches, when multiple people own different tracks, or when you are mapping research paths where the next step depends on what you learn. For a short, linear to-do, a list is still fine.