Non-linear
Non-linear describes something that doesn't have to be followed in a single, fixed order. Instead of moving step by step from beginning to end, people can move between parts in whatever sequence makes sense at the time. It's how most real conversations work: they branch, loop back and jump ahead as questions come up.
In a professional setting, a non-linear approach lets the discussion follow the audience rather than the script. A question about pricing, a request for an example or a challenge to an assumption can be answered straight away, without skipping through material that isn't relevant. The structure is still there - it just doesn't dictate the order.
The value of being non-linear is that it keeps the focus on what matters in the moment. People stay engaged because the content responds to them, and presenters stay in control because everything they might need is close at hand. It turns a one-way delivery into a genuine exchange.