That is amazing. Are those photos of glasses in your own home experiments?
Questions :
1) Was the baking soda added before, or after boiling?
2) Was it filtered water that was boiled, or just tap water?
A pH of 9 is great. That would nullify most incidental acidities (such as occasional cups of coffee), keeping the body at 7.45..
I drink filtered water that I buy from a paid dispenser near the 7/11 for $0.25/gallon. I hope that it is good, but if it is more acidic than tap water, then I have been going out of my way for something worse. Should I boil that?
I think someone fighting cancer should, in fact, drink the boiled+baking soda pH 9 water, once or twice a day. Cancer weakens from alkalinity.