Depends on who you're selling to. Here are few categories out of top of my head. - Make website very fancy with videos and do many useless benchmarks showing t

Depends on who you're selling to. Here are few categories out of top of my head. - Make website very fancy with videos and do many useless benchmarks showing that it's faster then everything, especially Nodejs - Create VM language and show that it's just as good as Java but with much more syntactic sugar. Also note that C# runs only on Windows and yours run on everything. - Do a static compiled-to-bytecode language that will be just as fast as C++. This is very hard so you can forget about this. - Create another "language" that will compile to Javascript.