[GrumpyYoungMan]

The fabs propped up the corpse of Moore's Law by throwing mountains of cash at expanding transistors into the third dimension: finFET, GAA, CFET, etc. That has kept the party going a little while longer than it would have lasted but it's a one-time deal since are no more dimensions to expand into.

[brookst]

…but that’s how it’s always worked. Moore’a law is dead, we’re at the limit of everything, oh hey, Moore’s lawn limps by again because someone did something clever.

[light_hue_1]

That's never how it worked. Moore's law was never dead. People are just endlessly confused about what Moore's law is.

What ended was Dennard scaling around 2006. Roughly that frequency would keep going up as feature size went down. But because so many people are confused about what is what, you see a crappy muddled message.

Moore's law has been going strong. It must end eventually, current predictions are that it will be in a decade or two.

[ForOldHack]

This is the kind of comment that will keep me laughing for weeks. Moore's lawn is in fact dead. We need to go back to calling what Moore said as his observational insight.

[dehrmann]

> into the third dimension

Does this actually work? At some point, and this is been the case for a while, you're limited by thermals. You can't stack more layers without adding more cooling.

[magicalhippo]

He's talking about how they've moved from planar transistors, where layers are just deposited on top of each other, to transisors with increasingly complex 3D structures[1] such as FinFET and Gate-All-Around, the latter having multiple nanowires passing through the gate like an ordered marble cake[2].

[1]: https://www.asml.com/en/news/stories/2022/what-is-a-gate-all...

[2]: https://anysilicon.com/the-ultimate-guide-to-gate-all-around...

[eru]

Moore's law doesn't say anything about you having to power all your transistors for them to count.

I'm only half-joking: the brain gets a lot of its energy efficiency out of most of its parts not working all that hard most of the time; and we are seeing some glimpses of that in mobile processors, too.

[WXLCKNO]

Depends, there could be 11 dimensions to expand into.

[skissane]

Assuming those extra dimensions really exist (it is unproven), I think we are centuries or even millennia away from being able to make technological use of them-if we ever will be at all

[relaxing]

Expand into the time dimension, evaluate infinite execution paths by reversing the pipeline, rerunning, and storing the results in a future accumulator.

[acchow]

> since are no more dimensions to expand into.

Quantum computing is next, right?

[adastra22]

That’s not how quantum computing works.