Bioprinting and Immortality

A promising alternative to the shortage of organs is to actually print new ones with the cells of the host. While this application is still far from available, it gives a promise of a time when we can fix our bodies without current limits and without sacrificing pigs. Maybe this would mean very long lives, almost immortality. But, how far should we push our lifespan? Some references:  P. Sreekala, M. Suresh, S. Lakshmi Priyadarsini, 3D organ printing: Review on operational challenges and constraints, Materials Today: Proceedings, Volume 33, Part 7, 2020, Pages 4703-4707, https://doi.org/10.1016/j.matpr.2020.08.349. Qian Yan, Hanhua Dong, Jin Su, Jianhua Han, Bo Song, Qingsong Wei, Yusheng Shi, A Review of 3D Printing Technology for Medical Applications, Engineering, Volume 4, Issue 5, 2018, Pages 729-742, https://doi.org/10.1016/j.eng.2018.07.021.