What is the technical limitation that prevents complete, real-time sentiment analysis of all Reddit comments using freely available third-party tools?

The primary technical limitation is the Reddit API's rate limits, which restrict the number of requests a client can make within a given timeframe, combined with the sheer volume of comments posted on Reddit in real-time. Even with freely available tools, accessing the full stream of Reddit comments for real-time analysis is hindered by these restrictions. The Reddit API enforces rate limits to prevent abuse and ensure fair access for all developers. These limits cap the number of requests a client can make per minute or per hour. Given the massive scale of Reddit, processing all comments in real time would require exceeding these limits, making it impossible to obtain a complete and continuous data stream. While some tools may offer near real-time analysis by sampling data or using multiple API keys, they are still constrained by the underlying rate limits and cannot capture every single comment. Furthermore, real-time sentiment analysis also requires significant computational resources for processing the text data. Sentiment analysis, the use of natural language processing (NLP), analyzes text to determine its emotional tone. Processing requires intensive server time. Even if all content was freely available, complete real-time analysis is not always possible given the computing requirements.