同样，由于科技和人口的变化，以及两者与不断变化的文化，种族，宗教等因素的相互影响 ， “ 最佳”政治区域也随着时间的推移而发生变化。
Likewise, “optimal” political areas change over time, owing to changes in technology and demography, and their interaction with evolving cultural, ethnic, religious, and other factors.