The world could run on older hardware if software optimization was a priority

I like to point out that since ~1980, computing power has increased about 1000X.

If dynamic array bounds checking cost 5% (narrator: it is far less than that), and we turned it on everywhere, we could have computers that are just a mere 950X faster.

If you went back in time to 1980 and offered the following choice:

I'll give you a computer that runs 950X faster and doesn't have a huge class of memory safety vulnerabilities, and you can debug your programs orders of magnitude more easily, or you can have a computer that runs 1000X faster and software will be just as buggy, or worse, and debugging will be even more of a nightmare.

People would have their minds blown at 950X. You wouldn't even have to offer 1000X. But guess what we chose...

Personally I think the 1000Xers kinda ruined things for the rest of us.

Except we've squandered that 1000x not on bounds checking but on countless layers of abstractions and inefficiency.

Am I taking crazy pills or are programs not nearly as slow as HN comments make them out to be? Almost everything loads instantly on my 2021 MacBook and 2020 iPhone. Every program is incredibly responsive. 5 year old mobile CPUs load modern SPA web apps with no problems.

The only thing I can think of that’s slow is Autodesk Fusion starting up. Not really sure how they made that so bad but everything else seems super snappy.

It vastly depends on what software you're forced to use.

Here's some software I use all the time, which feels horribly slow, even on a new laptop:

Slack.

Switching channels on slack, even when you've just switched so it's all cached, is painfully slow. I don't know if they build in a 200ms or so delay deliberately to mask when it's not cached, or whether it's some background rendering, or what it is, but it just feels sluggish.

Outlook

Opening an email gives a spinner before it's opened. Emails are about as lightweight as it gets, yet you get a spinner. It's "only" about 200ms, but that's still 200ms of waiting for an email to open. Plain text emails were faster 25 years ago. Adding a subset of HTML shouldn't have caused such a massive regression.

Teams

Switching tabs on teams has the same delayed feeling as Slack. Every iteraction feels like it's waiting 50-100ms before actioning. Clicking an empty calendar slot to book a new event gives 30-50ms of what I've mentally internalised as "Electron blank-screen" but there's probably a real name out there for basically waiting for a new dialog/screen to even have a chrome, let alone content. Creating a new calendar event should be instant, it should not take 300-500ms or so of waiting for the options to render.

These are basic "productivity" tools in which every single interaction feels like it's gated behind at least a 50ms debounce waiting period, with often extra waiting for content on top.

Is the root cause network hops or telemetry? Is it some corporate antivirus stealing the computer's soul?

Ultimately the root cause doesn't actually matter, because no matter the cause, it still feels like I'm wading through treacle trying to interact with my computer.

I don't get any kind of spinner on Outlook opening emails. Especially emails which are pure text or only lightly stylized open instantly. Even emails with calendar invites load really fast, I don't see any kind of spinner graphic at all.

Running latest Outlook on Windows 11, currently >1k emails in my Inbox folder, on an 11th gen i5, while also on a Teams call a ton of other things active on my machine.

This is also a machine with a lot of corporate security tools sapping a lot of cycles.