There is no reason anyone would want a computer in their home. This 'telephone' has too many shortcomings to be seriously considered as a means of communication. The device is inherently of no value to us. The wireless music box has no imaginable commercial value. We don't like their sound, and guitar music is on the way out.
Radio has no future.
X-Rays will prove to be a hoax. If I had thought about it, I wouldn't have done the experiment. The literature was full of examples that said you can't do this. Stocks have reached what looks like a permanently high plateau. There will never be a bigger plane built.