This summer, the Nobel laureate Prof Aaron Ciechanover joined a group of prominent Israelis gathered in the ruins of the Nir Oz kibbutz to demand a hostage release and ceasefire deal.

Nir Oz was the worst hit of all the communities targeted by Hamas on 7 October, with a quarter of its residents kidnapped or killed. Twenty-nine are still in Gaza.

If the hostages were not brought back, the basic social contract that underpinned Israeli society would unravel, the 77-year-old professor of medicine warned – with catastrophic consequences for the entire country.

He cited an accelerating “brain drain” of doctors and other professionals as a worrying sign that some of Israel’s elite already feel they no longer have a future in the country. And without them, Israel itself might struggle to have a future.

Ciechanover is a long-term critic of Benjamin Netanyahu and joined protests against his government before the war. But concern about this trend is not limited to political opponents of the Israeli leader. Earlier this year, Netanyahu’s former chair […]