Since one doctor said it is impossible and out of luck if you lose both legs at once do know people who learned to use two prosthetic simultaneously?

It is possible for people who have lost both legs at once to learn to use two prosthetic legs simultaneously. While it may be a challenging process, there are many resources and support available to help individuals adapt and regain their mobility. Here are a few examples of individuals who have successfully learned to use two prosthetics:

- Paralympian Oscar Pistorius: Pistorius, also known as the "Blade Runner," is a South African sprinter and Paralympian who had both of his legs amputated below the knee when he was 11 months old due to a congenital defect. He went on to become a world-renowned athlete, competing in the 2008 and 2012 Olympic Games. Pistorius used advanced prosthetic legs to achieve his athletic achievements.

- Adventurer Aron Ralston: Ralston is an American mountaineer and author who lost his right arm and most of his right hand in a climbing accident in 2003. He managed to free himself after spending six days trapped in a canyon by amputating his own arm with a dull pocket knife. Ralston later went on to learn how to use a prosthetic arm and hand and has continued to pursue his passion for adventure and outdoor activities.

- Dancer Adrianne Haslet: Haslet is a professional dancer and amputee who lost her left leg below the knee in the Boston Marathon bombing in 2013. She underwent extensive rehabilitation and training to learn how to dance again with a prosthetic leg. Haslet has since performed on stage, competed in dance competitions, and even danced on "Dancing with the Stars."

These individuals demonstrate that it is possible for people who have lost both legs to adapt and regain their mobility and independence through the use of prosthetic devices and determination.