Part of Cardano Fans mission is constant education for all of you, bring content in most digestible form.

Today let's talk about 5 sec block propagation times. As you know in coming days (1st Dec) IOHK will increase e.g. block size by 12.5%. It is first iteration of scaling.
Increasing block size has to be done carefully because Cardano's Ouroboros protocol has to propagate blocks in the network within 5 secs.

If you look at CRFA's propagation graphs from you will see:
A lot of stake pools are very similar, notice that it is less than 750 ms for the moment on 65kb blocks and in some scenarios due to some delays it can take even longer or close to 5 secs... (also many other stake pools have it), in computer science we call it "tail latency".
or in extreme cases 99% percentile of latency.
So when some blockchain XYZ tells you that they can do a round trip through the globe within 1 sec on very large blocks... you should really question this... how is it possible?

Don't believe what you read, analyze, reflect and ask unbiased experts (super hard these days).

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More from @matiwinnetou

23 Nov
Question for blockchain experts - but answers to be read by all.

The most modern blockchain architecture is considered:
- Settlement Layer
- Execution Layer
- Data Availability Layer
as separate executable nodes (modular).
Is this a good architecture? After all if we go distributed we trade some problems for other problems (see what microservices did...).

How does Cardano fulfill this vision? It appears to be semi-modular, not completely monolithic but not completely modular.
Cardano is opinionated about eUTxO on L1, this means the only isomorphic execution model can be some form of UTxO [I wonder if @fuellabs_ V2 would be possible] (maybe only eUTxO).

Of course it is possible to have many sidechains, where they take root of trust from Ouroboros.
Read 9 tweets
2 Nov
1. We will be explaining it a bit more in the upcoming medium blog article but whoever needs to hear early and finds this whole Cardano blockchain stuff hard.

Let me try to tell you this in simple terms.
2. One you have solution for concurrency challenge but it is a bit slow solution on L1 due to conservative block size on L1 (currently ca. 65 kb)...
3. and you have fully isomorphic parallel hydra-node with hydra heads with extension protocol (research paper completed in September 2021) that allows to hydra heads between to communicate with each other then you have almost indefinitely scalable DeFi with full security of L1.
Read 5 tweets
1 Nov
Some folks think that we in Cardano will get over time more folks from ETH ecosystem, this could be but maybe will never happen actually and maybe it actually shouldnt happen. I am not sure some folks from there I would even want to see here(of course I don't control it and good)
Cardano of course consists of many people with different backgrounds but there is something about philosophy about that is fundamentally different than Ethereum.

I see ETH more rooted in VCs thinking and pumping and returning to investors, while many Cardano folks mention price,
they rarely do this as main point, more like in addition.

This makes me conclude that even if Cardano and Ethereum would be completely the same technically they would most likely evolve in different ways (as per future governance).
Read 5 tweets
1 Nov
One of the hardest things for me to understand I will admit is whether Hydra L1 with all extensions can be used for composable DeFi.
State channels have limitations but this is assuming current state of the knowledge.
The often cited ones are:
- no ad hock hydra participants joining in and out
- trusted parties instead of unknown trustless parties as participants
Thinking out loud:
1. In normal L1 cardano network we have stakepools joining in and out so if why we can't have the same in Hydra L2 network?
2. What if hydra heads communicate with each other and we adopt threshold signatures, perhaps we can then have a full monthy L2 network
Read 4 tweets
25 Oct
A: Hello Sir B, short interview please?
B: Sure
A: What is our position?
B: I am a Junior Blockchain Developer
A: What's that
B: I know some aspects of blockchain but learning
A: Ok tell us, from smart contracts platforms what is interesting...
B: Depends what you want really..
A: Ultimate truth :)
B: That would have to be Cardano and Ethereum
A: Why is that, why not AVAX, ALGO, SOL, etc
B: Only those blockchains aspire at the moment to scale to millions TPS with L1 security guarantees (!), they just choose completely different path to the same goal.
A: Why is that?
B: Ethereum rushed developed an account model and rushed a few things to solve ultimately scalability issue (L2 layer using validators from L1). They want to do this via Optimistic and zkRollups.
Read 25 tweets
24 Oct
A: Hello Sir, you are from which VC firm?
B: Unchained Inc.
<small talk>
A: How is it that new SM chains launch despite competition of Cardano and Ethereum?
A: The problem with established chains is that they have too high token price, it is much better to launch new one from 0
A: So you support chains like AVAX, SOL, LUNA, ALGO and effectively print money?
B: Well, who said print money, we innovate but for this innovation we want high profit, this is why VCs own sometimes even 50% of tokens of those chains, yes.
A: But others could copy you and fork!
B: No way, we usually patent parts of software so it is not possible to fork those chains
A: But doesn't centralize those chains?
B: Yes but most people don't care, they want to flip coins and NFTs and want cheap transactions
Read 9 tweets

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