Elon Musk expressed strong disapproval of initiatives to create thermonuclear reactors on Earth. He believes that humanity is overlooking an already available and virtually inexhaustible source of energy.
According to Musk, the Sun is a "huge and free thermonuclear reactor" capable of meeting all of humanity's energy needs without the need for complex and expensive experiments.
Elon Musk
At the same time, he did not hold back his emotions, calling for an end to funding for such reactors.