纸上谈兵 (zhǐ shàng tán bīng): Armchair strategy — Meaning & Stroke Order

His plan sounds perfect, but it's ultimately just armchair strategy, lacking feasibility.

Don't you think that discussions detached from reality are merely armchair strategy?

We absolutely cannot engage in armchair strategy; we must take immediate action to address the crisis.

At friend gatherings, he always loves to engage in armchair strategy but has never actually started a business.