 As a consequence only a limited number of communities can be experimentally validated, and it is thus important to determine which communities to select for downstream validation and experimentation.
<clarity>  As a consequence only a limited number of communities can be experimentally validated, and it is thus important to determine which communities to select for downstream validation and experimentation.
 As a consequence only a limited number of communities can be experimentally validated, and it is thus important to determine which communities to select for downstream experimentation.