Social Media and Politics Temporal Validity, Knowledge Decay, and the Meta 2020 Election Research Partnership, with Dr. Kevin Munger
Nov 30, 2025
Dr. Kevin Munger, an expert in computational social science at the European University Institute, delves into the fascinating concept of temporal validity and its impact on social media research. He explains why rapid changes in platforms challenge traditional research methods and argues for the importance of forecasting in evaluating findings. Munger also critiques the Meta 2020 Election Research partnership and discusses how the pace of digital evolution demands new theoretical frameworks and innovative research approaches to remain relevant in political communication.
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Temporal Validity Matters For Social Media Research
- Temporal validity is the challenge of generalizing past social media findings to the future as platforms change rapidly.
- Knowledge decay grows with the rate of technological and social change, making old results less reliable.
Platform Changes Can Make Studies Unrepeatable
- Kevin Munger recounts Twitter bot experiments that later became impossible because platform bot detection improved.
- He also describes Facebook layout changes that made literal replication infeasible.
Prioritize Updatable Description Over Costly RCTs
- Prefer cheaply updatable quantitative description when phenomena change fast because it is cheaper to refresh.
- Reserve expensive causal field experiments for questions with slower knowledge decay or high durability.