What did Comte insist was a requirement for scientific credibility?

Comte insisted that empirical validation by multiple observers was a crucial requirement for scientific credibility, as it aligns with his emphasis on positivism. Positivism is the philosophical theory that suggests that knowledge is primarily derived from empirical, observable phenomena rather than from intuition or subjective feelings. By prioritizing empirical validation, Comte aimed to establish a rigorous scientific method whereby theories could be tested and confirmed through systematic observation and experimentation by different observers. This approach helps ensure reliability and objectivity, vital components in establishing scientific knowledge.

In contrast, subjective experience, personal insight, or a focus on philosophical theory do not provide the rigorous standards needed for scientific inquiry that Comte advocated. Subjective experiences are inherently personal and can be biased, while personal insights may not be universally applicable or verifiable. Focusing on philosophical theory alone may overlook the importance of empirical evidence and observation that Comte valued so highly.