These several facts accord well with our theory, which includes no fixed law of development, causing all the inhabitants of an area to change abruptly, or simultaneously, or to an equal degree.
Egitate ezberdinok bat datoz gure teoriarekin, honek ez baitu ezartzen, herrialde bateko biztanle guztiak bat-batean, edo aldi berean, edo maila berean aldatzea agintzen duen garapen lege finkorik.