Falling into the accretion disk of a supermassive black hole at the center of our galaxy would be an extremely dangerous and potentially lethal situation. The intense gravitational pull near a supermassive black hole would exert tidal forces on the person, stretching them apart. These tidal forces, known as spaghettification, occur because the gravitational pull becomes significantly stronger as you approach the black hole.
The accretion disk itself is a swirling mass of hot gas and dust spiraling into the black hole. It is an incredibly hostile environment with extreme temperatures, intense radiation, and high-speed particles. If someone were to fall into the accretion disk, they would be subjected to these harsh conditions.
As the person gets closer to the black hole, the tidal forces would become more intense, stretching and tearing them apart. The difference in gravitational pull between their head and feet would be so extreme that it would lead to their demise. Essentially, they would be stretched into a long, thin shape and ultimately torn apart.
Additionally, the radiation and high-energy particles within the accretion disk would pose a severe threat to the person's health. They would be bombarded by intense radiation, which could cause severe burns and damage to their internal organs.
Considering these factors, it is highly unlikely that anyone would survive falling into the accretion disk of a supermassive black hole. The gravitational pull and hostile environment would be overwhelmingly destructive, making escape from the black hole's clutches essentially impossible.