Startup Idea : visual human language using icons and concepts

Ever used an icon to represent something you say? For example, a birthday cake icon instead of saying Happy Birthday, or a beer icon to say Let's go have a drink. This idea can be generalized for all physical things. We can develop an international language that allows people to communicate across language boundaries. The visual elements would be supplemented with traditional text for abstract things. All these words and icons can be chosen from a conceptually organized hierarchical menu. So even the abstract words can be translated without much ambiguity.