After the Spike with Dean Spears and Michael Geruso

In After the Spike: Population, Progress, and the Case for People , Dean Spears and Michael Geruso argue that the defining demographic risk of this century is global depopulation. Spears and Geruso are both professors at the University of Texas at Austin, focusing on economic demography and development economics. In their new book, they explore the trend of falling birth rates, how it threatens human progress, and what actions may reverse this trend. In their conversation with Nikolaus Lang, global leader of the BCG Henderson Institute, they discuss projections for global depopulation, why advances in AI and robotics will not replace humans, why fewer people may not be good for the planet, and what the implications of all this are for business leaders. Key topics discussed: 01:06 | Projected global population levels 06:11 | The impact of depopulation 11:00 | The potential for AI and robotics to replace humans 17:00 | The environmental implications of depopulation 21:24 | Potential solutions to falling birth rates 26:02 | Implications for business leaders 28:26 | Reasons to remain hopeful Additional inspirations from Dean Spears: Air: Pollution, Climate Change and India's Choice Between Policy and Pretence (Harper Collins Publishers India, 2019) Where India Goes: Abandoned Toilets, Stunted Development and the Costs of Caste , co-authored by Diane Coffey (Harper Collins Publishers India, 2017)

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After the Spike with Dean Spears and Michael Geruso is an episode from Thinkers & Ideas by BCG Henderson Institute.

This episode is 34:57 long.

This episode was published on Sep 30, 2025.

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