Every man who reads too many books before he has lived goes mad in a specific way. first he is gentle because books are gentle. then he is arrogant because books make him feel superior to the unlettered. then he is desperate because he knows everything and can do nothing. then he is finally dangerous because he takes his first real beating from life and realizes all his knowledge did not protect him and now he must rebuild everything from the ground
Anyone working with RAG architecture will naturally transition to agentic without even knowing what "Agentic" RAG is. Pure RAG in of itself is quite restrictive for most viable use cases.
RAG didn’t “evolve.” It got replaced by something far more ambitious and nobody wants to admit it.
Agentic RAG is the new standard because builders finally realized retrieval isn’t the job. Decision-making is. The smartest teams I know already abandoned the old pipelines. They’re building systems that don’t just pull data but think through it, question it, and fix themselves when they screw up.
Here’s the real shift happening right now:
✓ Agentic routers send each query to the tool that actually makes sense instead of forcing everything through vector search.
✓ Planning modules break a messy question into clear steps and run them at the same time.
✓ Adaptive logic changes the retrieval strategy based on how hard the question is.
✓ Corrective layers catch garbage context, rewrite the query, and pull fresh info when needed.
✓ Reflection layers critique their own answers and loop until they hit something solid.
✓ Speculation engines spin up fast drafts with a tiny model and let a bigger one filter the best.
✓ Self-routing decides whether the model has enough context or needs to tap long-context memory.
Put it all together and you get systems that behave less like search engines and more like autonomous analysts. Retrieval is just one small piece of a much bigger loop.
RAG was about grabbing text.
Agentic RAG is about understanding when to grab it, how to use it, and what to do when the first attempt is wrong.
This is the infrastructure behind every AI agent people will swear “came out of nowhere” in 2025.
dear founders,
build like the clock’s running out. the window is open but it won’t stay. for the first time in history, you have free distribution from social platforms and infinite leverage from AI tools. you can reach millions without permission.
the internet is handing out unfair advantages to anyone bold enough to use them so...
ship before you understand it. clarity comes from commits. half your roadmap is ego, delete it. launch "ugly". talk to users every day. build what you wish existed. best ideas are the most obvious painful. go niche. no, go superniche. vertical is your moat.
clarity comes from commits. half your roadmap might be ego, delete it. make ugly things until they work. share prototypes that break.
kill what doesn’t grow. use AI as leverage, not decoration. test ten things before breakfast. delete your roadmap. double down on what works. design for clarity, not cleverness. brand before code. write daily. post your lessons.
find your first hundred users manually. distribution is the new product. attention is the new funding. taste is the new code. build small cults. scale later. automate boring things. keep the human parts human. study why things spread. study why things die.
pricing is positioning. aesthetics are trust. make people feel something. ignore haters. build in weird corners of the internet. break things publicly. pivot loudly. consistency compounds. only raise VC if you dream of going IPO one day. otherwise, cash-flow is your BFF.
your network is distribution. your story is marketing. your design is psychology. ship like it’s day one. iterate like you’re behind. stay obsessed. learn faster. think longer. risk embarrassment. make noise. build the thing that keeps you up at night. money follows obsession. stay in motion. stay loud. stay building. distribution is an art form now.
AI makes it easy to make things; the hard part is making things that matter. build like the world’s ending in a year but your idea has to outlive it
we’re living in a window of maximum leverage and minimum permission
im rooting for you.
best,
greg isenberg
just another founder rooting for you
deaw Gawwy Tan, i am fouw yeaws old and I dwopped out of pweschool and I am buiwding AI cocomewon to mentawwy enswave my fewwow toddwers. pwease accept me to youw accewewator
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