1) By default new technology is broken (until proven working in tests). There are virtually no examples of new complex technology working without prior testing

1) By default new technology is broken (until proven working in tests). There are virtually no examples of new complex technology working without prior testing and improvements. 2) You are extremely optimistic. Life expectancy improves for about 1 year in every 5 years (I'm quite optimistic with that estimate too). So if you are 30 now, then by the time you are 80 life expectancy would change from 78 years (today) to 88 years(50 years from now). So basically you have about 60 more years to live if you are lucky. No way that freezing technology would improve into something meaningful by then.