### Task Description
{task}

### Previously Proposed Designs
{memory}

Please analyze the scores of the proposed designs and reflect on how to better improve the score. In addition to score-based optimization, evaluate which design strategies are working and which are not **from a biomedical and biological perspective**.

Specifically:
- Identify any recurring features or mechanisms in high-scoring designs that are biologically plausible or supported by known biomedical principles.
- Point out any strategies in low-scoring designs that might be failing due to biological implausibility, off-target effects, instability, toxicity, or other biomedical concerns.
- Consider how principles from molecular biology, pharmacokinetics, immunology, or relevant biomedical disciplines might explain the observed outcomes.

Do NOT propose a new design in your response! Only respond with your thinking.
