I had many There have been conversations about life extension for years, and the idea is often met with resistance. People get upset when they hear about someone whose life has been cut miniature by a disease, but when they are faced with the possibility of extending human life in general, they react negatively. “Life is too difficult to contemplate it forever” is a common answer. But people generally do not want to end their lives at any point unless they are in great pain – physical, mental or spiritual. And if they absorbed the continuous improvement of life in all its dimensions, most such ailments would be alleviated. This means that extending human life would also mean significantly improving it.
But how will nanotechnology actually make this possible? In my opinion, the long-term goal is medical nanorobots. They will be made of rhomboid parts with built-in sensors, manipulators, computers, communicators and possibly power supplies. It’s intuitive to imagine nanobots as diminutive metal robotic submarines zipping through the bloodstream, but nanoscale physics requires a fundamentally different approach. At this scale, water is a robust solvent and the oxidant molecules are highly reactive, so robust materials such as diamondoid will be needed.
And while macro-scale submarines can move smoothly through fluids, for nano-scale objects, fluid dynamics are dominated by viscous frictional forces. Imagine trying to swim through peanut butter! So nanobots will have to utilize different propulsion principles. Similarly, nanobots will likely not be able to store enough energy or processing power on board to perform all of their tasks independently, so they must be designed to draw energy from the environment and either listen to external control signals or cooperate with each other to do so. calculation.
To maintain our bodies and otherwise counteract health problems, we will all need extensive numbers of nanobots, each about the size of a cell. The best available estimates say that the human body consists of several dozen trillion biological cells. If we get just 1 nanobot per 100 cells, that would mean several hundred billion nanobots. However, time will tell what the optimal ratio will be. For example, it may turn out that advanced nanobots can be effective even with cell-to-nanobot ratios several orders of magnitude higher.
One of the main effects of aging is the deterioration of organ performance, so a key role for these nanobots will be to repair and improve them. In addition to expanding our neocortex, this will mainly involve helping our extrasensory organs efficiently introduce or remove substances into the bloodstream (or lymphatic system). By monitoring the supply of these indispensable substances, adjusting their levels as needed, and maintaining organ structures, nanobots can keep the human body hearty indefinitely. Ultimately, nanobots will be able to completely replace biological organs if necessary or desired.
But nanobots will not be confined to maintaining normal body functions. They can also be used to adjust the concentrations of various substances in our blood to levels that are more optimal than those normally found in the body. Hormones can be modified to give us more energy and focus or to speed up the body’s natural healing and repair. If hormone optimization could make our sleep more competent, it would in effect be “life extension through the back door.” If you simply go from needing eight hours of sleep a night to seven hours, that’s as much waking life as the average lifespan of five years!