When it comes to getting better at English, not all talking practice is equal. Chatting about serious topics that make you think (critical thinking speaking practice) beats casual conversations for a few good reasons.

Firstly, critical thinking discussions dive deep into complex subjects. This means you're forced to express detailed thoughts and see different sides of an issue. This depth helps you learn and use new words and phrases, making your English richer and more varied.

Secondly, critical thinking practice isn't just about words. It helps you build the skill of putting together strong arguments and explaining your opinions well. This goes beyond just speaking English - it trains your brain to think more logically and express yourself more convincingly.

On the flip side, casual conversations are handy for everyday chit-chat, but they might not challenge your language skills as much. They cover various topics, but often lack the depth needed for serious improvement.

So, if you're an Upper-Intermediate or Advanced speaker and aim to boost your English, focusing on critical thinking topics in your conversations is the way to go. It not only sharpens your language abilities but also makes you a more thoughtful and effective communicator.