Accidental Tech Podcast
Accidental Tech Podcast

33: A 30-Minute Skip Button

* When we expected the Mavericks GM (recorded two hours before this). * Apparent new E5-1680 Mac Pro in Geekbench and what CPU tradeoffs to expect in the new Mac Pro. * Speculating on the new Mac Pro's fan noise, rotating cable management, and intended desk location. * FU on John's podcast

Featured Speakers

Marco Arment, Casey Liss, John Siracusa Host

Topics Discussed

Episode Summary

Executive Summary: The episode centered on the upcoming Mac Pro and Mavericks release, debating CPU/GPU tradeoffs, pricing, thermals, and usability of Apple’s new “trash can” design. It then shifted to app design for Overcast, including advanced scrubbing, sync protocol choices, analytics, and ethical limits around ad skipping. The show closed with sponsor reads and follow-up on iPhone 5S, Touch ID, and battery management.

Main Topics: New Mac Pro rumors, benchmarks, and configuration strategy: The hosts analyzed Geekbench leaks, Xeon E5 v2 options, and whether higher clocks or more cores are better depending on workload. They discussed how thermal limits and Apple’s custom design may affect performance and upgrade choices. Mac Pro pricing, margins, and U.S. assembly: They debated likely entry pricing, component costs, GPU uncertainty, and whether U.S. assembly meaningfully changes price. The discussion emphasized Apple’s possible margin room despite expensive graphics and custom hardware. Thermals, fan noise, and physical design of the new Mac Pro: They compared the new single-fan cylindrical design with prior Mac Pro and Retina MacBook Pro fan behavior, wondering whether the new machine will be quieter or more audible under GPU load and where it should physically sit. Overcast product design: scrubbing, sync, and analytics: Marco described a more responsive podcast scrubber concept, a move from binary sync payloads to gzipped JSON, and plans for server-side stats tracking. The discussion focused on usability, engineering complexity, and future features. Ethics of podcast ad skipping and data collection: They considered whether Overcast could enable community-driven ad skipping or detailed listener analytics, but argued that mass ad-skipping tools would harm podcasters and that any tracking should be transparent and limited. iPhone 5S, Touch ID, and battery life management: They briefly discussed the 5S, Touch ID reliability, case quality, and a longer battery-health idea for laptops that would keep batteries below full charge when always plugged in.

Key Arguments: Higher-clock Xeons may be better than more cores for many Mac Pro users because many real-world apps remain partially single-threaded. The new Mac Pro’s custom thermal and expansion design may let Apple optimize internal bandwidth and component selection, but it also makes GPU choice a major unknown. Apple likely has room for a healthy margin and could price the base Mac Pro below $3,000 despite expensive parts and U.S. assembly. A truly useful podcast scrubber must provide immediate visual feedback and zoomable time resolution; changing scrubbing speed alone is not enough. Community-wide ad skipping would damage small podcast creators, so it should not be built into a mainstream client even if technically possible. Detailed listener analytics are potentially useful to publishers, but if collected they should be disclosed openly and treated as a limited, non-representative sample. Battery longevity on always-plugged-in laptops could be improved by keeping charge in a lower band, but the UX cost of surprise low battery at departure makes this hard to ship.

Data Points: Recording date: October 3 - Used to frame the timing of Mavericks and other Apple fall announcements. Xeon chip price (retail estimate): about $1,000 - Referenced for the E5 v2 CPU likely used in higher-end Mac Pro configurations. Geekbench score (mentioned CPU): 24,000 - Score cited for the leaked Mac Pro-related Xeon benchmark. Geekbench score (12-core model): 29,000 - Compared against the 24,000-score CPU to show multi-core advantage. Expected entry price: under $3K - Speculation that Apple could still offer a sub-$3,000 base Mac Pro with strong margins. Alternative entry estimate: $3,500 - Another guest estimate for the base model given new graphics and assembly costs. Podcast scrubber reply count: about 10 - Marco said only around ten people responded positively to the scrubber idea. Battery optimization target: 40% - Proposed optimum storage/idle charge level for lithium-ion longevity. Battery use band: 80% to 40% - Described as an ideal active-use range for extending battery life. Tesla battery policy comparison: about 80% - Used as an analogy for not charging batteries to full capacity. Podcast app analytics example: 500 listeners - Raised as a possible low, representative-sample number for app-specific listener counts. App store / case price: $40 - Cost of Apple’s leather iPhone 5S case discussed as potentially too expensive. Cheap bumper price: $3.50 - Marco compared Apple’s case to a low-cost monoprice bumper. Home/work replacement cycle: 18 months - Mentioned for work-issued Dell laptops as a contrast to Marco’s 5-year Mac Pro. Old Mac Pro age: 5 years - John said his work Mac Pro was about five years old. Background fetch cadence: before expected launch time - Described iOS 7’s predictive background refresh timing based on usage patterns.

Pivotal Quotes: "I think it would be really cool, since I'm going to have server-side infrastructure, it would be really cool to do basically the Amazon Kindle popular highlights feature for things that are skipped in podcasts." — Marco: Discussing a possible Overcast feature for highlighting commonly skipped sections. "I would not feel good doing that." — Marco: Explaining why he would avoid building a mass ad-skipping feature that could hurt podcast creators. "The thing about any features, especially ones you're just like, wouldn't it be cool if you can't tell until you implement them." — Marco: Describing the uncertainty and risk of ambitious UI features like the scrubber.

Implications: Listeners get a preview of Apple hardware tradeoffs and of Overcast’s likely philosophy: strong UX, transparent analytics, and no mass ad-skipping. The episode also underscores how hard it is to optimize batteries and responsive mobile controls without hurting usability.

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