in an empirical manner; this can be empirically tested
[ Syn: through empirical observation , through empirical observation , through empirical observation , through empirical observation , by trial and error , by trial and error , by trial and error , by trial and error , through empirical observation , through empirical observation , through empirical observation , through empirical observation , by trial and error , by trial and error , by trial and error , by trial and error , through empirical observation , through empirical observation , through empirical observation , through empirical observation , by trial and error , by trial and error , by trial and error , by trial and error , through empirical observation , through empirical observation , through empirical observation , through empirical observation , by trial and error , by trial and error , by trial and error , by trial and error ]