02 · A Democratic Revolution

International Anti-speciesist Petition

Success of a democratic revolution

In political science and sociology, there is no single percentage that guarantees the success of a revolution. However, major historical research has identified specific tipping points.

The 3.5% Rule

According to political scientist Erica Chenoweth of Harvard University, no non-violent civil resistance campaign that actively and sustainably mobilised 3.5% of the total population has ever failed1.

The 3.5% rule is therefore a political science concept suggesting that when 3.5% of a country’s population protest non-violently against a government, that government becomes likely to fall.

To be considered successful, a movement had to achieve its objectives within a year of its peak participation and had to meet strict criteria of non-violence. Comparing the success rates of 323 violent and non-violent campaigns, Stephan and Chenoweth showed that only 26% of violent uprisings succeeded, whereas 53% of non-violent campaigns succeeded2.

Chenoweth found that almost every movement with the active participation of at least 3.5% of the population succeeded. All the campaigns that reached this threshold were non-violent.

Chenoweth noted that non-violent campaigns attract the participation of larger numbers of people than violent ones, partly because they place fewer demands on physical ability or weaponry, and that larger numbers bring a greater likelihood of political success.

Finally, the political scientist warned that the rule should be regarded as a “rule of thumb” rather than an absolute law, describing it as a descriptive rather than a prescriptive theory, and stressing the importance of other factors such as momentum, organisation and strategic leadership3. These methodological limitations have also been discussed in the academic literature4.

Source: see notes 1 to 4

The 25% Critical Mass

For broader societal change, studies of collective behaviour suggest that around 25% of a population constitutes a critical mass sufficient to bring about irreversible, deep-seated change to a system5.

Reaching these proportions does not mean that everyone must take an active part, but rather that an organised and visible minority manages to disrupt the system and convince the majority of the legitimacy of its demands.

Conclusions

Anti-speciesism is clearly a major cultural revolution that would probably require firm and lasting support from the electorate, in proportions closer to 20% than to 3.5%.

For reference, the population of the European Union is estimated at 452 million people in 20266. Firm and lasting support from 90 million people would therefore be needed to set an anti-speciesist revolution in motion.

Finally, it should be noted that factors beyond concern for the lives of non-human animals alone may also influence how quickly public opinion evolves — for example: climate change, the rise in zoonoses and pandemics, pollution and the destruction of natural ecosystems, public health problems, the cost of public policies linked to animal farming, health scandals, whistle-blower revelations, and so on — all consequences closely tied to animal exploitation as we currently know it.

Notes

  1. Chenoweth, E. (2020), “Questions, Answers, and Some Cautionary Updates Regarding the 3.5% Rule”, Carr Center Discussion Paper (2020-005), Carr Center for Human Rights Policy, Harvard Kennedy School.
  2. Chenoweth, E. & Stephan, M. J. (2011), Why Civil Resistance Works: The Strategic Logic of Nonviolent Conflict, New York, Columbia University Press.
  3. Chenoweth, E. (2020), “Questions, Answers, and Some Cautionary Updates Regarding the 3.5% Rule”, op. cit.; see also Chenoweth, E. (2021), Civil Resistance: What Everyone Needs to Know, Oxford University Press, pp. 114–119.
  4. Anisin, A. (2020), “Debunking the Myths Behind Nonviolent Civil Resistance”, Critical Sociology, 46(7-8), pp. 1121–1139; Matthews, K. R. (2020), “Social movements and the (mis)use of research: Extinction Rebellion and the 3.5% rule”, Interface: A Journal for and About Social Movements.
  5. Centola, D., Becker, J., Brackbill, D. & Baronchelli, A. (2018), “Experimental evidence for tipping points in social convention”, Science, 360(6393), pp. 1116–1119.
  6. Eurostat (2026), “Population and population change statistics”, Statistics Explained, European Commission.

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