Different materials and different building structures must exist for different periods of time. Wooden buildings can be preserved for 20 years, and the lifespan of reinforced concrete may be as long as 100 years.

The human body, which has been built and formed, has also determined a life limit because of its material structure. Even if it is carefully maintained to the greatest extent, all it can do is to extend the life period as much as possible within the limit, and it is impossible to break the established limit in the end.

If you want to change, you may have to build genes from the baby or single-cell period, probably by replacing the 'wood material' with 'reinforced cement', and so on. As for the 'houses' that have been built, they can only be repaired and repaired. Perhaps at most, they will be renovated and reinforced. The basic material structure will not be changed too much after all.

As for ITER, it was a document sent by some people who heard the news in Washington after SpaceX was established.

Basically, I hope Simon can be a sucker.

ITER is actually a global plan, just the name "International Thermal Fusion Experimental Reactor" can probably determine the content of the plan.

In order to solve the energy problem that traps human development, in 1985, during the meeting with former Soviet President Gorbachev, then-US President Reagan jointly finalized an experimental plan to build a large Tokamak fusion reactor for researching controlled nuclear fusion. After years of planning, the construction plan was initially completed in 1990.

Subsequently, in just a few years, the world situation changed drastically, the Soviet Union collapsed, the Gulf War broke out, the economies of many countries around the world gradually fell into turmoil and sluggish, and the ITER plan was also stranded.

The main thing is that it is too much money.

$5 billion, which seems not much, is actually just building an extra-large tokamak installation.

The tokamak controlled nuclear fusion scheme proposed by former Soviet scientists in the 1950s and initially confirmed under experimental conditions has always been controversial in the scientific community. Many scientists believe that the tokamak device will only be proved to be a dead end and is not worthy of continuous investment.

Therefore, a huge $5 billion investment was finally completed, and the result is likely to be just a waste of money.

Coupled with other reasons, the plan was stranded.
Chapter completed!