Web3 overview: The internet’s makeover you can actually own
If blockchains were cities, then Ethereum’s L2s are the commuter rails, Solana is a humming maglev, Bitcoin L2s are the high-security armored transit, and Cosmos is… that entire federation of bespoke towns that somehow share the same passport. Grab your digital metro card — let’s ride.
Ethereum + L2 Rollups (Optimism / Base / Arbitrum)
What is it?
Ethereum is the smart-contract mothership ethereum.org. L2 rollups like Optimism, Base, and Arbitrum bundle transactions off-chain, then post proofs on Ethereum. Same security heritage, fewer fee-tears.
Is it still relevant?
Absolutely. It’s where the majority of web3 devs still camp out, with L2s doing the heavy lifting while Ethereum focuses on being a secure settlement layer.
Pros / Cons; Strengths / Weaknesses
- Pros: Inherits Ethereum security, huge toolchain (Solidity, Ethers, Hardhat), deep liquidity, thriving dev community.
- Cons: UX can still feel “expert-mode,” fees spike on hot days (less so on L2), cross-L2 fragmentation is a thing.
- Strength: Credible neutrality and composability.
- Weakness: Complexity — bridges, sequencers, proofs… lots of moving parts.
What is it used for?
Everything from DeFi to NFTs to on-chain social. L2s make micro-transactions and high-frequency use cases feasible.
Example
Ship a micro-subscription dApp on Optimism using OP Stack, or drop an on-chain loyalty program on Base that settles to L1 for finality.
Alternatives
Solana for speed, Cosmos for sovereignty, Bitcoin L2s for BTC-centric finance.
Famous art?
If gas spikes count as performance art, then yes. Otherwise: plenty of generative art projects, but nothing in the Louvre — yet.
Popularity & Trend
Developer mindshare remains massive; growth is shifting into L2 ecosystems (OP Stack “Superchain,” Arbitrum Orbit).
Peak popularity?
Peaks arrive around major upgrades and bull cycles; rollups are the current crescendo.
History & Inventors
Vitalik & friends launched Ethereum in 2015; rollup theory matured over the last few years as the scaling path of choice.
Who uses it?
Everyone from indie builders to major exchanges; countless brands test pilots on L2 for loyalty and micro-commerce.
Similar to…
Think “cloud regions” for blockspace: different zones, same base platform.
AI-friendliness
Good: rich SDKs, oracles, and data availability for AI agents to transact cheaply on L2.
Tech stack & tools
Solidity, Vyper, Hardhat/Foundry, Ethers.js/viem, Subgraphs, Sequencers/Provers. Explorers like Etherscan and BaseScan help you snoop your own app.
Costs
L2 tx fees are cents to fractions thereof; deploying complex contracts can still add up, but it’s night-and-day vs L1.
Tidbit
Optimism’s OP Stack powers multiple chains (including Base) moving toward an interoperable “Superchain.”
Solana
What is it?
A high-performance L1 built for serious throughput: sub-second blocks, low fees, parallel execution. Home at solana.com.
Still relevant?
Oh yes. It’s the speed demon of consumer crypto: payments, meme markets, NFTs, on-chain games — all go brrr.
Pros / Cons; Strengths / Weaknesses
- Pros: Blazing speed, tiny fees, great for consumer UX.
- Cons: Rust/Anchor learning curve; occasional network drama historically (now much improved).
- Strength: Throughput and UX.
- Weakness: Less EVM tooling portability.
Use cases
Payments, micro-commerce, creator tools, mobile-friendly flows (hello, QR at checkout).
Example
Real-time tipping during livestreams with negligible fees; on-chain game state updates without lag.
Alternatives
EVM L2s (tooling portability), Cosmos (chain sovereignty).
Famous art?
More like famous mints — NFT seasons have been wild here.
Popularity & Trend
Up and to the right in users and devs; financial products circling it keep expanding.
History & Inventors
Founded by Anatoly Yakovenko et al.; mainnet beta launched 2020.
Who uses it?
Growing consumer apps, creators, payment rails, trading protocols.
AI-friendliness
Good for AI agents that need frequent, cheap actions (micro-tx). SDKs are maturing.
Tech stack & tools
Rust, Anchor framework, TypeScript SDKs, explorers like Solscan.
Costs
Fractions of a cent per tx. Your latte costs more than a month of Solana gas.
Tidbit
Its 400ms-ish block times make UX feel web-app-like — users don’t wander off mid-transaction.
Bitcoin L2s (Lightning, Stacks, Rootstock, Liquid)
What is it?
Extensions that bring speed, programmability, or confidentiality to Bitcoin while anchoring to BTC’s security.
- Lightning Network: instant, low-fee BTC payments via channels (lightning.network).
- Stacks: smart contracts (Clarity) and Bitcoin-anchored settlement (stacks.co).
- Rootstock (RSK): EVM-compatible, merge-mined sidechain for Bitcoin DeFi (rootstock.io).
- Liquid Network: federated Bitcoin sidechain for fast/confidential asset settlement (blockstream.com/liquid/).
Still relevant?
Yes — Bitcoin is the liquidity king. L2s unlock utility without disturbing Layer 1 minimalism.
Pros / Cons; Strengths / Weaknesses
- Pros: BTC brand/security, payments at scale (Lightning), programmability (Stacks/Rootstock), confidential settlement (Liquid).
- Cons: Different trust models (channels, federations, merge-mining), varying UX.
- Strength: Built around Bitcoin’s hard-money backbone.
- Weakness: Fragmented developer experience vs EVM world.
Use cases
- Lightning: point-of-sale payments, remittances.
- Stacks: BTC-settled DeFi/NFTs.
- Rootstock: EVM dApps secured via merge-mining.
- Liquid: rapid exchange/OTC settlement, asset issuance.
Example
A café accepts sub-$5 BTC coffees on Lightning with near-zero fees; a treasury settles BTC-denominated bonds on Liquid; a DeFi protocol launches on Rootstock using Solidity.
Alternatives
Use ETH L2s for generalized smart contracts; Solana for consumer speed; Cosmos for sovereign appchains.
Famous art?
Plenty of BTC-themed art; Liquid’s confidential transactions are basically artistic blur for your balances.
Popularity & Trend
Lightning keeps expanding among payment apps; Stacks/Rootstock/Liquid are steadily carving niches.
History & Inventors
Lightning: Poon & Dryja paper; Stacks: Muneeb Ali & team; Rootstock: early RSK/Rootstock Labs; Liquid: Blockstream.
Who uses it?
Merchants (Lightning), trading desks/exchanges (Liquid), DeFi builders (Rootstock), BTC-centric app devs (Stacks).
AI-friendliness
Great for AI agents needing cheap instant payments (Lightning) or BTC-settled logic (Stacks/Rootstock).
Tech stack & tools
- Lightning: LND/Core Lightning nodes & SDKs.
- Stacks: Clarity, Hiro tools.
- Rootstock: Solidity, EVM tools; merge-mined security.
- Liquid: Elements, confidential transactions, Blockstream AMP.
Costs
Lightning fees are tiny; Stacks/Rootstock/Liquid txs are low vs typical L1 settlement.
Tidbit
Rootstock is merge-mined by major BTC pools, piggybacking Bitcoin’s hash power for security.
Cosmos Appchains (Cosmos SDK, IBC)
What is it?
A toolkit for building sovereign blockchains that talk to each other through IBC — cosmos.network and cosmos.network/appchains/. Think: “roll your own chain” with native interop.
Still relevant?
Increasingly. Big protocols (e.g., dYdX v4) moved to their own appchains for control and performance.
Pros / Cons; Strengths / Weaknesses
- Pros: Full sovereignty (fees, tokens, blockspace), native cross-chain messaging (IBC), performance tuned to your use case.
- Cons: You run a chain — ops, validators, upgrades.
- Strength: Tailor-made economics and throughput.
- Weakness: You own reliability and community bootstrapping.
Use cases
High-volume trading (dYdX Chain), cross-chain DEX (Osmosis), specialized finance, gaming, data chains.
Example
A music-royalty chain that pays artists per stream in real time, bridging to other IBC chains for stablecoins and oracles.
Alternatives
EVM L2s (less ops), Solana (single high-perf L1), Bitcoin L2s (BTC-native).
Famous art?
Cosmos art lives in dashboards and mempools — Osmosis UIs get genuine design compliments.
Popularity & Trend
Steady builder growth; IBC connectivity keeps adding chains; “appchain” is now a normal path for mature protocols.
History & Inventors
Cosmos whitepaper by Jae Kwon & Ethan Buchman; Tendermint (now CometBFT) consensus + Cosmos SDK + IBC do the magic.
Who uses it?
Osmosis (interchain DEX), dYdX (perpetuals on its own chain), Cosmos Hub (ATOM governance & shared security).
AI-friendliness
Excellent for AI agents that need custom fees/quotas and native inter-chain messages (e.g., pay-per-API call chains).
Tech stack & tools
Golang (SDK), CometBFT, relayers for IBC, explorers, chain toolkits; Cosmos Hub offers Interchain Security.
Costs
You control gas economics; infra and validator costs depend on how fancy you get.
Tidbit
IBC is basically “TCP for blockchains” — lightweight, permissionless channels between sovereign chains.
Friday Night Laughs Mini
I tried to lift a bag of crypto “wrapped” tokens and pulled a hammy. Too many layers.
Art Prompt (Baroque)
A dim tavern interior cracked open by a single golden beam, faces emerging from shadow with moody lighting echoing Caravaggio; rough-hewn table angled toward the viewer, velvet-dark background swallowing detail; gestures frozen mid-whisper, fingers poised above scattered coins; saturated umbers, olive blacks, and sudden lemon highlights; fabric folds catching light like small storms; composition off-center, the bright diagonal slicing gloom to reveal surprise and human awe; paint the air itself — dust motes glittering like tiny stage lights — while edges fall away into luxurious darkness.
Video Prompt
Start on a snap-to-light reveal: hand slaps table, coins jump, and a hard cut ignites the golden beam across the scene; quick rhythm edits: faces pop from shadow, eyes dart, and chiaroscuro pulses in sync with percussive hits; insert micro-pushes toward the brightest highlight, then whip-back to deep black; strobe the diagonal of light to “breathe,” letting dust motes swirl in exaggerated slow-motion between fast cuts; finish with a sudden blackout and a single breath sound before a final flash of the illuminated hand.
Songs to set the vibe:
- Harder, Better, Faster, Stronger — Daft Punk
- Energy — Disclosure
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