Uploaded November 2025 | Updated September 2026, 2 hours ago
Ever wondered why AI suddenly forgets half your conversation?
It’s not confusion. It’s capacity.
LLMs only see what fits inside their context window, and once it’s full, older messages quietly fall out or get compressed. That’s why long chats feel like the model has amnesia.
The fix isn’t bigger memory. It’s retrieval.
Instead of stuffing the whole conversation back in, the system pulls only the pieces you need for your next question and stitches the flow together so it feels like real memory.
Simple idea, huge impact on how we build reliable AI systems today.
I’m Louis-François, PhD dropout, now CTO and co-founder at Towards AI. Follow me for tomorrow’s no-BS AI roundup 🚀
#ArtificialIntelligence #LLMs #AIExplained #short
Ever wondered why AI suddenly forgets half your conversation?
It’s not confusion. It’s capacity.
LLMs only see what fits inside their context window, and once it’s full, older messages quietly fall out or get compressed. That’s why long chats feel like the model has amnesia.
The fix isn’t bigger memory. It’s retrieval.
Instead of stuffing the whole conversation back in, the system pulls only the pieces you need for your next question and stitches the flow together so it feels like real memory.
Simple idea, huge impact on how we build reliable AI systems today.
I’m Louis-François, PhD dropout, now CTO and co-founder at Towards AI. Follow me for tomorrow’s no-BS AI roundup 🚀
#ArtificialIntelligence #LLMs #AIExplained #short










