Not so. Intangible assets have legally existed for centuries - and all are subject to jurisdiction. In ancient times the debate was between intangible assets and intangible rights, certain instances of the latter were valid. Even Talmudic law, which generally regarded intangibles as invalid, recognised certain intangible assets (such as the marriage kethubot). Although ancient Roman Law regarded the sale of intangibles as an emptio spe (like a gamble), certain intangibles such as sales of future agricultural crops were valid at law. Cato writes extensively on this. Modern SA (and Scottish) Roman-Dutch law has long recognised intangible assets in both accounting and contract, and crypto presents no novel legal challenges. SA law amply recognises intangibles, from IP (eg copyright and patent), to goodwill, future liabilities, etc, etc. Remember, too, that banknotes are themselves tokenised (they're not the money, but simply represent a title to money, which is these days nothing, ie intangible).