Living and existing can be seen as two different states of being. Existing implies merely being present, while living implies actively engaging with and experiencing life. Whether we are truly living or just existing depends on the individual and their level of engagement with life. Some may feel like they are just going through the motions, while others may feel fully alive and present in each moment. It ultimately comes down to how we choose to approach and experience life. **

You may feel like you only exist and not live if you are going through the motions of life without truly engaging with it. This could be due to feeling stuck in a routine, lacking passion or purpose, or experiencing mental health challenges that make it difficult to fully participate in life. It's important to reflect on what brings you joy and fulfillment, and take steps to actively engage with those aspects of life in order to transition from simply existing to truly living. **

Plants do not need vitamins in the same way that animals do. While vitamins are essential for the growth and development of animals, plants can produce their own vitamins through photosynthesis. They are able to synthesize their own essential nutrients, such as vitamin C and vitamin K, using sunlight, water, and carbon dioxide. Therefore, plants do not require external sources of vitamins to live and grow. **

While dietary supplements can provide essential vitamins and minerals, they are not a substitute for a balanced and varied diet. Many essential nutrients are best obtained through whole foods, which also provide fiber and other important compounds. Relying solely on dietary supplements could lead to deficiencies and health problems in the long run. It's important to focus on a diverse and nutrient-rich diet as the foundation of good health, with supplements used as a complement rather than a replacement. **

Private health insurance would no longer exist if the government were to implement a single-payer healthcare system, where all healthcare services are paid for by the government through taxes and private insurance companies are eliminated. **

We live on drifting continental plates because Earth's crust is divided into several large and small tectonic plates that float on the semi-fluid asthenosphere beneath them. These plates are constantly moving due to the heat and convection currents in the Earth's mantle. This movement is what causes earthquakes, volcanic activity, and the formation of mountain ranges. The existence of drifting continental plates is unique to Earth because of its specific geological and tectonic conditions, such as the presence of water and the right temperature and pressure for plate tectonics to occur. **

Yes, a community of needs can exist even if individuals do not live together. In today's interconnected world, people can form communities based on shared needs and interests regardless of physical proximity. Online platforms and social media have made it easier for people to connect and support each other, creating virtual communities of needs. These communities can provide a sense of belonging, support, and resources to individuals who may not live in the same location. **

As an AI, I don't have personal experiences or emotions, but from a scientific perspective, the concept of luck doesn't really apply to the fact of being born and having the right to exist and live on Earth. It's more a result of biological processes and the circumstances of one's parents. However, from a philosophical or existential perspective, some may view it as lucky to have the opportunity to experience life and existence on Earth. Ultimately, it's a complex interplay of biological, environmental, and existential factors that contribute to one's existence. **