Random thoughts: Conquering human mortality seems about as likely as either proving (or disproving) that time and space are the same.
Life, death and meaning are merely parts of the total human experience. Meaning, itself, changes with the advance of human consciousness. Science and technology will not in and of themselves promote human flourishing until it is fully realized that they have the potential to do just the opposite. Living forever would not "render life meaningless", it would only serve to further the problem of finite resources.

Hello Sarah, I would like ot make a few comments on your post. Social media is not the driving force behind transhumanism in turning the philsophy into a world movement. The driving force is comprised of the hard work of seminal thinkers who pooled their works as a foundation for developing the worldview. The viability of transhumanism stands on the shoulders of these thinkers. Technology and science have always been used to overcome the odds humanity has faced since we became homo sapiens. The ethos is not that humans are at a comparitively early phase. The fact is that humans have and will continue to evolve. Your post seems to be a promotion of Zoltan Istvan, whose contributions to the movement are not new; however, he is a valued participant. His interpretation of transhumanism is normal, as many align with transhumanism for specific reasons. However, his claims of immortality are not those of transhumansim, as the philosophy does not use that term largely because it is tied to pseudo-science and hope rather than evidence-based desire and accountability. Instead: longevity, indefinite lifespans, etc. are used.