An idea is an idea is an idea

Some design ideas have a direct relationship to an actual object where ideation is pragmatically pursued through the interaction with the physical environment. But there are also designer who seek the highest level of abstraction, or the purity of a concept where, for example, a building is conceived as an abstraction. Yet both pragmatic and rational attitudes and approaches to ideation are expressed in language; verbal, visual or abstract (numeric). But language is embedded in culture and represents meanings. For example, the concept of a house may differ from one culture to another, and from one era to another. Is there then a common language for expressing ideas that bridges such differences? If not, how is communication between designers and stakeholders possible? And how is change possible, for example, in designing homes, if change of the concept of home isn't changed, altered or modified, say, through working from home or multi-generational living? And so, with ideation begins responsibility because the successful idea must meet stakeholders' values and expectations.