Inclusion and summary, Why don't we have this mentality towards bitcoin and know its the latest Generation that has came to stay which through bitcoin we had a blockchain that featured all forms of technologies in the world, and yet you think one day bitcoin price will fail you? My dear this is No to my answer because those who witnessed those 1 to 3 Generations of computer aren't there again so in essence why not buy bitcoin and hold and think of 20 years to come and more, if only we can centered our heart with the progression of computer then we would patient enough not to talk about price of bitcoin at this present moments.
So please bring down your tension and feel free with bitcoin since there are more things to explore with this current Technology.
Being worried is a normal human nature, and some people have the issue of worrying too much than others. The people that tend to worry too much need to reminded constantly that bitcoin is something that will last long even if another technology will evolve from it, they need to be told. As long as bitcoin is in existence, there will always be people that will worry about it and how long it will last. Since you are emotionally more stable and worry less than others, you can share your confidence with them to help them worry less.