Saturday, April 4, 2026

Sometimes "New Technology" is Not Better than the Existing Alternatives

The “heads up” display on a car’s windshield is quite the novelty. Whether it is useful is not so much the issue. Whether it is usable is the issue. 


If you are wearing polarized sunglasses while driving, the display is blocked. So now you have to make a technology decision: wear only non-polarized sunglasses; have two types of sunglasses or simply realize you aren’t going to be using the heads-up display. 


Interface

Strength

Weakness

Smartphone

Full control, rich apps

Requires attention + hands

Smart glasses

Hands-free, contextual AR

Limited display, battery

HUD (cars, aviation, AR overlays)

Immediate situational awareness

Narrow information bandwidth

Audio (voice assistants, earbuds)

Zero visual load, ambient

Low precision, ambiguity


Sometimes the cool and novel technology might not be transparent or easy to use, though designed that way. 

HUDs face calibration issues, glare in sunlight, and the tendency to clutter your field of vision rather than simplify it.


Gesture controls (BMW, Volvo) require precise, unnatural hand movements; accidental triggers are common; much slower than just pressing a button.


Voice assistants in cars often struggle with accents, road noise, and complex commands and might require you to memorize specific phrasing. 


Smartwatch notifications are easy but replying on a tiny screen, managing apps or navigating menus are clunky.


Smart glasses (Google Glass, Ray-Ban Meta) might be socially awkward to use in public. It can be hard to view the display in bright light and voice commands might feel unnatural. 


Interacting with a fitness tracker with a small display can be challenging. 


Touch-panel light switches that replace a simple tactile switch with a glass panel that you have to look at and press just right can be more work than the original interface.


Smart locks with keypads or apps can mean fumbling with your phone in the dark or cold and is arguably worse than using a key. 


Voice-controlled TVs can be convenient, but it might still be easier to just pick up the remote. 


And some audiovisual enhancements just never seem to catch on, such as 3D TVs or spatial audio headphones with head tracking. The effect is impressive for some  minutes, but then the constant recalibration and lag can become annoying. 


The point is, there typically are multiple ways to satisfy some need, and not all the ways are equally compelling, all the time. 


Use Case / Problem

Smartphone (handheld apps)

Smart Glasses (AR / wearable)

HUD (fixed display, e.g., car windshield)

Audio Interface (voice / earbuds)

Key Tradeoff

Navigation / directions

Map app, turn-by-turn directions

Directions overlaid in field of view

Turn arrows projected on windshield

Spoken directions only

Visual vs. distraction vs. convenience

Messaging / communication

Typing, reading full threads

Glanceable notifications, voice reply

Minimal alerts (e.g., incoming call)

Dictation + read-aloud messages

Precision vs. speed

Translation / language help

App-based translation (camera or text)

Real-time subtitles in view

Rare / limited

Real-time spoken translation

Latency vs. immersion (Alibaba)

Photography / recording

Manual capture via camera

First-person, hands-free capture

Not typical

Voice-triggered capture (via phone)

Control vs. immediacy

Work instructions (field work, repair)

Manuals, videos, checklists

Step-by-step AR overlays on real objects

Industrial HUDs for critical info

Audio instructions

Hands-free advantage is decisive (MDPI)

Fitness / health tracking

Apps + wearable sync

Real-time biometrics in view

Heads-up metrics (cycling, driving)

Spoken coaching feedback

Attention vs. safety

Search / information lookup

Browser or app search

Contextual info about what you see

Limited contextual prompts

Voice queries + answers

Speed vs. depth

Entertainment / media

Video, games, social media

Private AR screens / lightweight viewing

Minimal (music info, etc.)

Music, podcasts

Immersion vs. mobility

Notifications / alerts

Full notification center

Peripheral, glanceable alerts

Critical alerts only

Spoken alerts

Cognitive load management

Meetings / collaboration

Video calls, chat apps

AR annotations, shared view

Limited

Voice-only participation

Richness vs. friction

Accessibility (vision/hearing)

Accessibility apps

Real-time captions, object recognition

Limited

Screen readers, voice control

Continuous assistance advantage (MDPI)

Shopping / product info

Apps, scanning barcodes

Overlay product info in-store

Rare

Voice search

Contextual relevance

Driving / safety

Phone navigation (unsafe to handle)

Experimental (not widely used)

Core use case (speed, nav, alerts)

Voice navigation

Safety-critical context favors HUD

Daily task management

Calendars, reminders

Subtle prompts in field of view

Minimal

Voice reminders

Interrupt vs. ambient nudges


What changes is how and when you access those capabilities using hands, eyes, voice, or passive display. 


Smartphones arguably remain the “general-purpose hub,” while smart glasses, heads-up displays (HUDs), and audio interfaces specialize in reducing friction in specific contexts (hands-free work, real-time awareness, ambient computing).


The point is that the usefulness of any approach is rarely limited to one mode, one device or physical solution, and some “advanced” solutions do not always provide a better user experience.


Artemis II Live Cam

 Artemis live cam here.

source: NASA


Friday, April 3, 2026

Pietá: "Perfect" Block of Marble; Artisan, Sacrifice

Michelangelo Buonarroti, born in 1475 in Caprese, Italy, carved the Pietá from a single block of Carrara marble when he was 24!

source: ItalianRenaissance.org 


The sculpture features two figures: the Virgin Mary and her son, Jesus Christ. Many will note the 

details of the composition


“As an enduring symbol of the High Renaissance, the Pietá is often considered one of the pinnacles of human artistic achievement. Its flawless execution, combined with its deep emotional resonance, exemplify the ideal of the Renaissance artist as a master of both craft and expressive storytelling.”


“For Christians and other religious individuals, the Pietá continues to serve as a powerful symbol of sacrifice, compassion, and divine love. It invites viewers to contemplate on the profound mystery of the Christian narrative, the sacrifice of God’s son, and the sorrow of a mother.”


“For those outside of the Christian faith or those who do not subscribe to any religious belief, the Pietá’s appeal lies in its depiction of universal human experiences—love, loss, and grief.”


The Pietá sits in St. Peter’s Basilica in Rome. 


“Michelangelo claimed that the block of Carrara marble he used to work on this was the most ‘perfect’ block he ever used.” Most perfect block, work and sacrifice. Fitting.

Earth, from Artemis II

Earth photo taken by astronaut and Artemis II Commander Reid Wiseman. Taken from the Orion spacecraft's window on April 2, 2026, after completing the translunar injection burn! Going to the moon!


source: NASA

"Redemptive Suffering" is Hard to Understand

Good Friday seems an appropriate time to meditate on “redemptive suffering,” something the Catholic Church, perhaps uniquely within the Christian tradition or religion in general, emphasizes.


“Redemptive suffering” is about the ways human suffering can take on spiritual meaning and value, and I have to admit I’ve struggled to understand this for 30 years. 


It isn’t that pain is a “good” thing. Christians are called to alleviate it when they can. But I’ve often wondered what the heck people mean when they say “offer it up to God.”


A long story made short, it means suffering has meaning and purpose. 


Human suffering (unavoidable) can be “offered up” and united with the suffering of Jesus to create spiritual value, for oneself (your suffering is not “meaningless”) or for others (your prayer intentions for others).


“Suffering with” Jesus does not mean you alter what already has been done (“salvation or redemption”) but on the other hand unites you that act.


The way I characterize this is that as cultivating a garden; raising a child; building some useful object; painting; singing or other creative acts are in some sense a participation in genesis (“creation”), so suffering might be viewed (when offered intentionally) as part of the redemption of the universe. 


When someone suffers illness or loss, and intentionally “offers it up,” it becomes a prayer.


People can respond to suffering in different ways, and doing something with it imparts meaning:

  • resentment

  • despair

  • acceptance

  • as an offering.


Salvifici Doloris seems to be the most insightful treatment I've found. The idea is that suffering can have meaning and value for you and others, just as any other act of service. Our own suffering, when united purposefully with the suffering that was part of Jesus’ salvific act, is transformed, and helps others.


So suffering is not “meaningless.”  


Catholic teaching is that this happens because of the communion of saints. 


The communion of saints is the spiritual union (in reality, not theoretical) of all Christians, living or dead. We can pray for each other, ask for help and help others, as though all were fully present in the present moment. 


When a person unites their sufferings with Christ's Passion, those sufferings can benefit other souls, spiritually, morally, and redemptively. 


Done that way, suffering has a “creative character”: it produces good. help apply and extend that redemption in time and space to others. 


What I think I learned this year (after 30 of not comprehending) is that the model is suffering endured by Jesus to redeem the universe. That sacrifice transformed suffering into redemption. 


And that is the pattern. Our own personal suffering can be transformed into redemptive reality for others. 


Catholic teaching is that redemptive suffering works in many ways:

  • Leading to the conversion of others

  • “Speeding” saints entry into heaven

  • For some intention (a good for another person)

  • To further sanctify the world

  • unleashes unselfish love on behalf of those who suffer.


This has nothing to do with what Christ already accomplished (redemption of the world). It has everything to do with how we can wring benefits for other humans out of our own pain. 


So my new understanding, as limited as it might be, is that in Catholic theology, redemptive suffering is quite similar to other Christian practices of charity and mercy. We do things to help others. 


Aspect

Redemptive Suffering

Works of Mercy (Corporal & Spiritual)

Purpose

Helps others spiritually (conversion, purification, graces for souls in need/Purgatory)

Helps others bodily (poor, sick, unhoused) and spiritually (comfort, counsel, prayer)

Union with Christ

Unites personal pain to Christ’s Cross

Serves Christ directly in the suffering neighbor (“You did it to me” – Mt 25:40)

Effect on the doer

Purifies the soul, builds virtue, increases merit

Expresses and grows charity; conforms us to Christ the Servant

Effect on others

Channels invisible graces; supports the Church’s mission

Provides tangible relief + spiritual aid; can open hearts to grace

Biblical root

Colossians 1:24; participation in Passion

Matthew 25 (judgment based on mercy to the needy)

Motive

Love expressed through sacrifice and acceptance

Love expressed through action and compassion


--------------------------


Aspect

Catholic Teaching

Buddhist Teaching

Origin of Suffering

Original sin (Fall of Adam and Eve); disorder introduced into a good creation by free will.

Craving/attachment (tanha), rooted in ignorance of impermanence, no-self, and the three poisons (greed, hatred, delusion).

Nature of Suffering

Physical, emotional, and spiritual pain; part of the fallen human condition but never meaningless.

Dukkha: inherent unsatisfactoriness of all conditioned existence (birth, aging, sickness, death, change).

Purpose / Meaning

Positive redemptive value: unites the sufferer with Christ’s Cross, purifies, atones, builds virtue, and participates in salvation of the world.

None inherent; suffering is a diagnostic fact of existence meant to awaken insight, not to be “offered up” or glorified.

Response to Suffering

Patient endurance, “offer it up,” prayer, sacraments, works of mercy; legitimate to seek relief (medicine, comfort).

Mindful observation without attachment or aversion; cultivate compassion (karuna) and wisdom through meditation and the Eightfold Path.

Path to Overcoming

Faith in Christ, grace received through sacraments, prayer, and charity; hope in the Resurrection.

Noble Eightfold Path: ethical living, meditation, and direct insight into the Three Marks of Existence.

Ultimate Resolution

Eternal life in heaven (Beatific Vision) where suffering is abolished forever; suffering is redeemed, not erased.

Nirvana: complete cessation of craving and rebirth; suffering ends permanently with no remainder.

Role of God / Divine

Personal, loving God who permits suffering but enters it in Christ and brings greater good from it.

No creator God; the universe operates by impersonal laws of karma and dependent origination.



What a Race; What a Horse

 Sometimes you just have to truly admire what a horse can do.