In a single lifetime, people have seen remarkable advances in transportation, communication, and other technologies, which have brought unprecedented economic changes.
Emalembeni ya kwalomu ka 70 kumbe ku tlula ku ve ni ku antswisiwa ka swa vutleketli, tindlela to vulavurisana ni swi tirhisiwa swin'wana swa thekinoloji leswi endleke leswaku ku va ni ku cinca lokukulu ka ikhonomi.