Ben Fish

CEO & Co-Founder, Espresso Systems · 1 appearance on the record.

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founderexecutiveacademicscientist@benafisch ↗sites.google.com/site/benafisch ↗

Ben Fish is the CEO and co-founder of Espresso Systems and an assistant professor of computer science at Yale University. As a cryptographer, he developed foundational primitives including Verifiable Delay Functions and Proofs of Replication.

15statements → 2claims → 1claims resolved → 3.93/5average certainty → 1.93/5average debate potential →

1 supported 0 partly supported 0 contradicted 1 not checkable as stated how the 2 claims stand · each chip opens the sources

2 assertions · 1 opinion · 12 insights · every statement was checked. The predictions and assertions are the 2 claims: statements the public record can support or contradict. 1 is resolved, and 1 names no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.

The record, in short

What the tape says about how Ben argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

Their most notable supported claim

Assertion Supported
Fish: Proof of Replication enables storing useful data on disk
“And so that's really what proof of replication is. It's a really tight proof of space that you can use to store useful data.”
Ben Fish Apr 19, 2019 ▶ 34:24 Towards a Decentralized Storage Network for the Blockchain Computer

How they sound: speaking style how? →

224 words/min while actually speaking · 33.9 um and uh per 1k words

No argument clarity score for Ben Fish: no usable question→answer exchanges on raw tape (a fair score needs 8+). We do not score a sample that small. Roundtable and news formats yield far fewer direct exchanges than interviews.

Measured by listening to the audio itself: 5,873 words across 1 episode of raw-level tape, transcribed verbatim with every um and uh kept, each one attributed only where the alignment onto our timed stream is unambiguous. These are measurements of speaking style. We do not rank them: across this corpus, fluency and argument quality are nearly uncorrelated (ρ≈0.2), and smooth talking does not signal clear thinking. How it's measured →

Everything Ben Fish said on the a16z Podcast that made the record, most notable first. Filter by type, assessment or year in the ledger →

Insight
Fish: Decentralized networks give anonymous devices Amazon-level cryptographic trust
“You don't have to spend, you know, millions of dollars on PR to you know, to garner a name like Amazon. Right. You just have a device. You join the network. Nobody knows who you are. But yet everybody should be able to have the same trust in you that they have…”
Ben Fish Apr 19, 2019 ▶ 10:09 Towards a Decentralized Storage Network for the Blockchain Computer
Opinion
Fish: Bitcoin's proof-of-work energy is largely wasted computational work
“The thing about Bitcoin is that all that work is just sort of computational energy that is, ah, that is, say, somewhat wasted, although it maintains the system in balance.”
Ben Fish Apr 19, 2019 ▶ 16:46 Towards a Decentralized Storage Network for the Blockchain Computer
Assertion Not checkable as stated
Fish: Governments can easily force centralized cloud providers to censor files
“If you have Amazon in charge of all the storage, then maybe Amazon is not intending to censor Individuals, but say a government is, it's much easier for a government to prevent Amazon from serving files to their country than, you know, a amorphous internet of,…”
Ben Fish Apr 19, 2019 ▶ 3:58 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Bitcoin is a decentralized storage network for a single file
“You can think of a, you know, decentralized accounting system, Bitcoin being the first example of such as a example of a decentralized you know, storage network. It's just that the one file that the entire system has decentralized the storage of is the ledger …”
Ben Fish Apr 19, 2019 ▶ 6:04 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Standard proofs of retrievability are impractical for decentralized storage networks
“But then when you start to talk about, you know, the economics of an entire decentralized storage network, it seems quite impractical to say, okay, well, you're a user. If you want to store your files in this network, then you have to constantly ping the netwo…”
Ben Fish Apr 19, 2019 ▶ 15:00 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Proof of storage turns environmental footprint into practical file storage
“In a decentralized storage network that is based on proof of storage, the footprint is something useful. It's file storage itself.”
Ben Fish Apr 19, 2019 ▶ 21:36 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Cryptography cannot force nodes to store unencrypted file duplicates
“There really is no way to force someone to store multiple copies of a file. The only thing that you can cryptographically guarantee Is that somebody is using as much space as they claim to storing files.”
Ben Fish Apr 19, 2019 ▶ 27:38 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Storage networks must prevent nodes from deduplicating for profit
“And so if you take the perspective that nodes in a decentralized storage network are going to be, you know, acting not necessarily maliciously, but Rationally, and that if they could earn more dollars by saving a little bit of storage, and therefore destroying…”
Ben Fish Apr 19, 2019 ▶ 29:12 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Proof of Replication prevents Amazon from easily attacking decentralized networks
“When you do something like proof of replication, it's an extremely inconvenient way of storing files, right? So if Amazon were to convert all of its storage to you know, proof of replication for formatted storage it would be quite inconvenient if not if not co…”
Ben Fish Apr 19, 2019 ▶ 42:53 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Proof of Replication balances ASIC barriers with commoditized storage access
“So I think that's sort of where, Where proof of replication falls. Somewhere in between something which has high, you know, barriers of entry, such as something which requires ASICs you know, versus something that is just so convenient for Amazon to do and par…”
Ben Fish Apr 19, 2019 ▶ 44:18 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: A 1% storage overhead hurts Amazon but empowers individual users
“I mean, when you're talking about a huge business like Amazon where the potential impact of, you know, making a small difference in the latency that they have for their customers or a small overhead in the storage that they're using. It could be, it could real…”
Ben Fish Apr 19, 2019 ▶ 46:35 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Accumulators separate blockchain consensus from storage for mobile validation
“Yeah, I recently gave a talk on this in a way of looking at this as a separation of consensus and state but really it's a separation of the consensus layer of a blockchain accounting system from the storage layer you know, where the, you don't have to have the…”
Ben Fish Apr 19, 2019 ▶ 51:44 Towards a Decentralized Storage Network for the Blockchain Computer
Assertion Supported
Fish: Proof of Replication enables storing useful data on disk
“And so that's really what proof of replication is. It's a really tight proof of space that you can use to store useful data.”
Ben Fish Apr 19, 2019 ▶ 34:24 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Proof of Replication uses asymmetric encoding for fast file recovery
“Proof of replication designs this encoding process in an asymmetric way so that it takes a long time to derive a encoding of a file. In a very short period of time to recover it, or at least, ah, the decoding step could be parallelized.”
Ben Fish Apr 19, 2019 ▶ 38:37 Towards a Decentralized Storage Network for the Blockchain Computer
Insight
Fish: Data replication provides fault tolerance and censorship resistance
“Replication is what gives you fault tolerance and say censorship resistance. If there's only one node that's storing your file, then if that node goes down, you could lose your data. And from another perspective, if there's only one node storing your file, the…”
Ben Fish Apr 19, 2019 ▶ 22:34 Towards a Decentralized Storage Network for the Blockchain Computer

Appearances (1)

EpisodeDateSpeaking time
Towards a Decentralized Storage Network for the Blockchain Computer Apr 19, 2019 33m
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