He told me to invest in gold bullion

Today an older man has told me an interesting story which I find quite unreal, however, I can"t judge it as I don"t really know whether it is true or not. This older gentleman told me few things and I guess that he wanted to guide me in life in general. I think that he wanted to help me and just give me important tips about life. I don"t know whether those tips are up-to-date or whether they are outdated. One of those stories, the one which I find quite unreal but it surely is interesting, was about gold. This older man told me that I should invest in gold as gold is the future. At first I was really skeptical because I thought that gold was very precious but in the past. Then he enlightened me and told me something that sounds quite reasonably. He told me that I should focus on the currency, oil and gasoline. Those three things are constantly changing. The currency is currently going down, meaning, the money is losing it"s value. Oil and gasoline are very are also changing drastically through years. And while those things are changing gold is constantly going higher. He told me that gold used to be precious but now, it is extremely precious. He told me that I should invest in gold bullion as this is the only way to get a lot of money. He told me that he is already too old and can"t care less whether he has money or not but I am still a young man and I should consider buying a gold bullion and when the prices of gold are extremely high I should sell or I should just keep if for hard times. Maybe he is right?