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Abstract:
The, so far, unique and well constrained TRAPPIST-1 system can be exploited for testing planet formation theories. Because of observational biases, terrestrial planet formation models will, for the next decade, only be testable around low mass stars, showing the need for research in this area. We invoke the Bern model of global planet formation and evolution to conduct population syntheses for 0.1 solar mass stars and compare the wealth of systems to the TRAPPIST-1 system, finding reasonable consensus for many observables. However, compositions differ significantly.