Spit Spreads Death redesign

Gabi Kiryluk

hybrid experience, 2025
KTH Royal Institute of Technology, User Experience Design and Evaluation
contributors:
Zeynep Sude
Leyi Yin
Yuchen Zhai

This project is a redesign of Blast Theory Spit Spreads Death Parade - an interactive parade of light and sound that commemorates those who passed away in the city of Philadelphia during the 1918 flu pandemic.  Hundreds of people marched through the city, with each holding a chosen person’s name to honour those who died on the deadliest day 12 October 1918. The happening creates moment in time for collective reflection and commemoration, showcasing the scale of this historical event as well as allowing for emotional connection with the lost ones.
The design brief was to identify the way the project creates a change in the user/participants, and then to design exclusively online version of this work that preserves or enhances that change. 
In the group we focused on the emotional connection that the parade facilitates with the emphasis on the scale of the event, resulting in the prototype of a Digital Cemetery. Later on, I took this concept back to the physical interaction, reshifitng focus on the act of lighting up the candle as a universal way to commemorate those who passed away.




Final Prototype Demonstration



The user gets to browse through the candles and choose the person they would like to commemorate for the duration of the online event. The online candle is lit as long as the physical flame is on.



Intended Change in the Participant


As a group, we identified the below changes that the Parade facilitates in the user:
By engaging hundreds of participants it communicates the scale of the historical event and  makes the participants reflect on the consequences of pandemics
Choosing a tag with the lost one’s name allows  participants to develop an emotional connection to those who passed away
It raises awareness of pandemics and this particular flu pandemic of 1918

Based on these identified changes, we decided to develop an online version of Spit Spreads Death  with its focus on raising awareness of pandemics and evoking an emotional connection between participants and the lost ones.  We came up with a concept of a Digital Cemetery - a website where people can light a candle for the chosen person, they can learn more about the lost people, and leave flowers and messages for them. It preserves the same format of selecting the lost one by looking at their information and stories.
Prototype of the Digital Cemetery


Critical reflection and individual redesign


Death is a sensitive subject for a lot of people and how we approach it varies across different cultures. Creating a virtual cemetery can be seen by some as disrespectful and flattening the seriousness and profoudness of these spaces. Instead, it may appear as a game due to point and click interaction of lighting up the candles and leaving comments under people’s tombstones. Furthermore, the users are not gathered in the same time and space the same way the Parade did. The Digital Cemetery makes it difficult to evoke emotional connection to those who passed away, further creating additional layer of distance towards the historical event. 

Instead, my redesign focuses on the physical action of lighting up a candle as a symbol of hope and a way to remember the dead. The act of lighting up a candle for the loved ones as a way to celebrate, commemorate, pay respect, remember is a universal gesture across different cultures and festives: Diwali, St Lucia, All Saint’s etc. The Memorial Candles mix the meaningful gesture of lighting a candle, with the online space where all the participants gather at one time and space



Design Decisions and UX Theory

Static deterministic interface

This hybrid experience builds on principles of inclusive design, enabling users of various abilities and technical backgrounds to use the product without a trouble. To achieve that, the designed interface is static and deterministic (Rongen, 2025). The flame status is fixed in the top right corner next to the information icon, aligning it with web design conventions. Coupled with minimalistic aesthetics, this layout guides the users to direct their attention to find the status of the flame, or to learn more. The decision to include a pop up information when hovering on different candles aligns with the principle of discoverability in UX Design (Mackamul, 2022), which states that an interface should allow the users to figure out the actions that are possible and how to perform them. These design features increase the inclusivity of the design - the simple interaction and clear layout facilitates easy navigation for users of various abilities. Furthermore, the simplicity of the interface shifts the focus to the physical gesture and one’s own emotions, rather than distracting the users away from the reflective state. 

Universal Design


The idea behind the candle holder is that the simple act of lighting up the candle that everyone is familiar with, may activate an online event. It is a very simple mechanism that requires low physical effort and using the online representation of the candle allows to build a mental model of the mechanism - the physical action is mimicked by the interface. These elements feed into universal design of the Memorial Candles.

The decision to use a cloud of candles as the centre point of the interface is informed by interface transparency design idea, circulated by Norman in Design on Everyday Things (2003). “Transparent interface makes it clear what users can do and how they are supposed to do it”. (Bardzel & Bardzel, 2015, p.43). By mirroring the physical candle on the screen, this allows a user to create a mental model of how the system works and they are able to see the system’s state clearly - when the physical candle is lit, the chosen candle on the interface is consequently lit. If one blows the candle, the flame will go off on the interface. To further support the transparency of the system, the interface provides the status of your candle’s flame. This idea also aligns with principles of universal design which state that the system should be simple and intuitive in use, require low physical effort, and should make the information perceptible (Eriksson-Lind & Sjöwall).


Embodied Interaction


Translating an in-person parade into online space loses a lot of the experiential qualities of being together in a shared place and marching together for the same cause. Therefore, Memorial Candles is an online happening - the candles are all lit around the same time, and anyone around the world may participate in the event. A countdown to the event is included. Enacting a gesture of lighting a physical candle brings the users together, introducing an element of embodiment.

Embodied interaction is “one in which a participant relies on the senses to reach a new fidelity of realism, often using motion or gesture as triggers.” (Kel Smith, 2013). The user cannot light the Memorial Candles by a simple click - instead they need to engage in an act of lighting up a physical candle connected to the system. In that sense, the gesture triggers the act of collective remembrance and contributes to the online happening. Providing multiple candle options to select from extends the interaction time. This is based on the Hick’s Law which states that the reaction time increases with the number of equally likely choices (Cho et al.2025). The decision to limit the amount of candles the user can light was informed by the principle of mapping from Classic UX Design (Rongen, 2025). Limiting interaction to selecting just one person the user can light the candle for, it elevates the weight of the gesture and increases the realism of the interaction, delivering an embodied interaction.



The act of lighting up the physical candle allows to light up a candle for a chosen person.


Design process

This project was built  using Lovable  as well as Arduino MKR Wifi 1010 (the original intent was to make the candle holder send the data over WIFI, however due to time constraints I kept the prototype connected to the computer), and Node.js.
Arduino MKR Wifi 1010


Lovable
Node.js


#1 Version



The first reiteration of the website revolves around a virtual cemetery offering the ability to interact with the graves (light up the candle, learn about the person, walk between the graves), providing the zoom in and out functionality.



Feedback & Reflections:

  • Cemeteries don’t function in all cultures and represent only the western-european traditions
  • Death is a very touchy subject - consider how you can make a design more serious
  • Consider how to better communicate the scale of the 1918 pandemic
  • This design resembles a game resulting in a flattening of the subject matter than the intended design direction

#2 Version


In this version, the design drives away from the idea of a cemetery to refocus on the gesture of lighting a candle - a universal symbol of hope, memory and paying respect to the loved ones. 



Feedback & Reflections

  • It is difficult to grasp the context of the project - think about a way to learn more about the original idea
  • The UI is confusing and could benefit with different layout


Final Prototype


The final prototype includes the candle holder that allows the user to light one chosen candle on the online interface. The design is intuitative, provides immediate feedback and the tone of it is appropriate to the subject matter.



Why it works:


It merges the online with the digital,  better reflecting the act of commemorating and remembering those who passed away during the 1918 pandemic
It gathers people in the same time and space by offering organised online event when people together light up the candles at the same time
The final design reflects the atmosphere of the subject matter
Inclusive design reflects traditions of more cultures, rather than focusing on the European-Western traditions
This prototype could be put into use during actual pandemics, during times of isolation, promoting solidarity and rememberence 
The act of lighting up a candle facilitates the emotional connection, the same way the spotlight did in the original project
Participants get to choose a person to remember, learning more about them similarly to the original idea


Critical reflection:


This project remains an online happening; it is not meant to replace in-person places of burials 
The commenting function may require moderation
The final product would need to be battery powered and use the local WIFI: the cable plugged into the computer constitutes a fire hazard



References:

Cho, H., Hong, Y., & Kim, W. (2025). HickStudy: Designing a user interface for a Hick's Law-based information processing speed test app. In Adjunct Proceedings of the 38th Annual ACM Symposium on User Interface Software and Technology (UIST Adjunct '25). ACM. https://doi.org/10.1145/3746058.3758441

Bardzell, J., & Bardzell, S. (2015). Humanistic HCI. Morgan & Claypool. https://doi.org/10.2200/S00664ED1V01Y201508HCI031

Eriksson-Lind, C., & Sjöwall, D. (2025, November 19). UX-design for disabilities [Lecture]. Habilitering & Hälsa, Region Stockholm.

Mackamul, E. (2022). Improving the discoverability of interactions in interactive systems. In Extended Abstracts of the 2022 CHI Conference on Human Factors in Computing Systems (CHI EA '22). ACM. https://doi.org/10.1145/3491101.3503813

Norman, D. A. (2003). The design of everyday things (First Basic paperback ed.). Basic Books.

Rongen, D. (2025). AI and user experience design [Lecture]. Field.io.

Smith, K. (2013). Designing for tomorrow's digital outcasts. In K. Smith, Digital outcasts: Moving technology forward without leaving people behind (pp. [chapter page range]). Morgan Kaufmann. https://doi.org/10.1016/B978-0-12-404705-1.00009-1

Gabi Kiryluk
interactive media artist


gabriela.kiryluk@gmail.com

LinkedIn

Instagram

Want to work together or connect? Don’t hesitate to reach out!

Open to internships, freelance work, collaborations, and opportunities in graphic design, interaction design, web development, and UX/UI.