Building electronic constuctions without soldering

At your risk. If this post is not mistaken NASA electronics are hardwired point to point. And we are taught to make a strong electrical, mechanical connection before soldering. Then why not just do only this and be able to build somethig even on the beach. Rescent Pleiades preamplifiers, power amplifiers have been built this way, the sound is amazing, no noise problem. See rescent posts, on using wirewrap technique, Wago connectors etc.