The desirability of assimilation and the melting pot model has been rejected by proponents of multiculturalism, who have suggested alternative metaphors to describe the current American society, such as a salad bowl, or kaleidoscope, in which different cultures mix, but remain distinct in some aspects. The melting pot continues to be used as an assimilation model in vernacular and political discourse along with more inclusive models of assimilation in the academic debates on identity, adaptation and integration of immigrants into various political, social and economic spheres.