From Plato to Production

Every time you sit down to write code, you are unknowingly re-enacting a conversation that has been happening for 2,500 years. About what knowledge is. Where it comes from. And what we owe to the people who come after us.
From Plato to production is not a journey from philosophy to reality. It's the realization that production was always philosophical.

Transcript

1. 5/11/2026 Hi
2. 5/11/2026
3. Who are you? Where does the world come from?
4. 5/11/2026 I have a question like that too.
5. Why does bad code bother us... when it works?
6. 5/11/2026 400 BC
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8. 5/11/2026 Is there a perfect version of your code that exists, even if it never gets built?
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11. 5/11/2026 IDEA
12. 5/11/2026 Plato
13. 5/11/2026 EROS Plato
14. 5/11/2026 # Version 1 def process(account) account.loans.each do |loan| if loan.due_date < Date.today && !loan.returned? loan.update(overdue: true) AccountMailer.overdue_notice(account, loan).deliver_later account.increment!(:penalty_points) end end end # Version 2 def handle_overdue_books(account) account.loans.overdue.each do |loan| loan.mark_overdue! notify_member(account, loan) penalize(account) end end IDEA
15. 5/11/2026
16. 5/11/2026 Platonism
17. 5/11/2026 A language that feels true.
18. 5/11/2026 When you make a pragmatic decision, are you being wise? Or are you just giving up?
19. 5/11/2026 Aristotle You might be wrong... Oh, really?
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22. 5/11/2026 I am beautiful I am perfect
23. 5/11/2026 Why does it rain? Final cause "Physical" cause "Emotional" cause
24. 5/11/2026 Why a code looks the way it does? "Physical" cause Final cause
25. 5/11/2026 Library loans dashboard Books Magazines DVD Loanables (They all have "title") Conditions This page is the librarian's morning dashboard Average branch: 18 active loans. Titles are cached for 24 hours. Books don't rename themselves at night.
26. 5/11/2026 class LoansController def index @loans = current_librarian .branch.loans.active .includes(:member) end end <% @loans.each do |loan| %> <%= loan.member.name %> <%= LoanableCache .fetch(loan.loanable_id) .title %> <%= loan.due_date %> <% end %> class LoansController def index @loans = current_librarian .branch.loans.active .includes(:member, :loanable) end end <% @loans.each do |loan| %> <%= loan.member.name %> <%= loan.loanable.title %> <%= loan.due_date %> <% end %> Production: page is slower than before Cache LoanableCache bypassed
27. 5/11/2026 Aristotle It is Phronesis Interesting... Yes, ship it. Refactor later.
28. 5/11/2026 Are you building things? Or are you thinking, and code is just the residue?
29. 5/11/2026 Ancient Philosophy Plato → Aristotle → Kant Enlightenment Newton → Einstein Modern Programming Knuth → Thompson → Matz HUMAN KNOWLEDGE Hegel
30. 5/11/2026 Hegel
31. 5/11/2026 Kant
32. 5/11/2026 # Version 1 def process(users) users.select { |u| u.created_at > 90.days.ago && !u.confirmed? } end # Version 2 def unconfirmed_recent_signups(users) users.select { |u| u.created_at > 90.days.ago && !u.confirmed? } end
33. 5/11/2026 Kant
34. Ancient Philosophy Plato → Aristotle → Kant 5/11/2026 RESIDUE Enlightenment Newton → Faraday → Darwin Modern Programming Knuth → Thompson → Matz Kant Hegel
35. 5/11/2026 What if the most important thing you do happens before you type a single line?
36. 5/11/2026 You stare. at a working code you feel bothered Platonic ideal failing to approximate you get the itch. you stop and ask Why? Because it has Stakes The answer matters Wonder. Cannot stare. at a working code and feel bothered No Platonic ideal failing to approximate NO itch. does not stop and ask Why? Because it has no Stakes The answer cannot matter NO Wonder. Which one are you?
37. 5/11/2026 Thaumazein WHY?
38. 5/11/2026 How do I optimize this? Why does it bother me that it works? How do I optimize this? You stare. at a working code you feel bothered Platonic ideal failing to approximate you get the itch. you stop and ask Why? Because it has Stakes The answer matters Wonder.
39. 5/11/2026 def calculate_late_fee(loan) days_late = (Date.today - loan.due_date).to_i (days_late * 0.20).round(2) end Why per day? Why 20%? Who decided that? Is this punishing the people who can least afford to return things on time? You stare. at a working code you feel bothered Platonic ideal failing to approximate you get the itch. you stop and ask Why? Because it has Stakes The answer matters Wonder.
40. 5/11/2026 Cannot stare. at a working code and feel bothered No Platonic ideal failing to approximate NO itch. does not stop and ask Why? Because it has no Stakes The answer cannot matter NO Wonder.
41. 5/11/2026 You stare. at a working code you feel bothered Platonic ideal failing to approximate you get the itch. you stop and ask Why? Because it has Stakes The answer matters Wonder.
42. 5/11/2026 Eros Phronesis Dialectic Knowledge construction
43. 5/11/2026 WHY?
44. 5/11/2026 The wondering was always the job. The code was always just the residue. Yara
45. 5/11/2026 Spoiler Alert !
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47. 5/11/2026 What if the most important thing you do as an engineer happens before you type a single line? When you make a pragmatic decision, are you being wise? Or are you just giving up? Is there a perfect version of your code that exists, even if it never gets built? Are you building things? Or are you thinking, and code is just the residue? When you name a variable, who are you talking to? If the tests pass, are you done? If you refactor code no one will ever read, did it matter? When you say "good enough," good enough for whom?
48. 5/11/2026 Grazie ! Yara Debian /yara-debian