I would not fear it. Technology has the potential to make us immortal and to help us transcend out biological beginnings. Humans that live for extended periods

I would not fear it. Technology has the potential to make us immortal and to help us transcend out biological beginnings. Humans that live for extended periods of time would be able to make progress and keep knowledge alive for longer periods of time facilitating an acceleration of progress made -> repeat. You are also assuming that we fix aging but we make no progress in other domains. Would you really care how old you were if you could "download" yourself in a new replica at will? ie technology was so advanced that we would maintain our biological form only because we would like to experience things our ancestors did, not because it would be necessary. --- Also, when people say longevity there are at least 2 things that are mingled together. One is: living longer but the other one is just improving the quality of life. So whenever you are afraid of this new future, picture people living 20% longer only, but their life quality into their 80s and 90s would be the same as a person today in their 40s. Who would not want to have a better quality of life and instead of spending their last decades watching as their body fails and things get worse and worse?