Internal rationality is using truth-preserving thought processes that output good hypotheses given good data. Examples include:
External rationality is discerning good data from bad data. Examples include:
External rationality and internal rationality intersect and build upon one another.
I like using these words instead of "inside view" and "outside view" because "outside view" tends to exclude model-based reasoning when you can have detailed models of what data is good or bad. Also "outside view" specifically refers to reference class forecasting and I don't want to overload the term. I also feel like "external rationality" and "internal rationality" are better at communicating the fuzzy intuition I'm getting at here.