On Wikipedia, find information about artificial consciousness. Specifically, identify the main philosophical arguments or thought experiments that support its possibility. Also, determine the current views on whether Large Language Models (LLMs) are conscious, and what features are suggested for future AI to achieve consciousness.
Navigate to Wikipedia (wikipedia.org). Search for 'Artificial consciousness'. Locate and describe the key philosophical thought experiments presented by David Chalmers regarding qualia and functionally identical systems. Find the section discussing Large Language Models and consciousness. Identify David Chalmers' view on the consciousness of current LLMs and the features he suggests future 'LLM+s' would need to achieve consciousness. Synthesize all identified information into a concise answer.
Accurately describe the 'fading qualia' thought experiment and its conclusion that qualia do not fade, implying a silicon brain can be sentient. Accurately describe the 'dancing qualia' thought experiment and its conclusion that functionally isomorphic digital systems would perceive the same qualia. State that David Chalmers argued in 2023 that current LLMs are likely not conscious yet. List the features Chalmers believes future 'LLM+s' might need: recurrent processing, a global workspace theory, and unified agency.