Give a provisional point of view based on what you know, then state the biggest remaining uncertainty.

Synthesis does not require perfect information. It requires prioritizing the evidence and showing how your view is evolving.

You might say that market demand looks attractive so far, but profitability remains unproven because cost data is still missing.

Use three parts: current conclusion, supporting evidence, and the next question that matters most. If useful, this guide on case interview insight generation gives more detail.

Provisional synthesis is still synthesis.