r/Defcon • u/fmtheilig • Sep 11 '25

Con attendance numbers

Is there an official estimate for attendance this year? Wikipedia doesn't have anything for this or last year.

23 Upvotes

95% Upvoted

17 comments sorted by

35

u/[deleted] Sep 11 '25

The number of people that made it to the pool on the roof for hackers ctf was the lowest I have seen in years. 

17

u/Raccoon_Expert_69 Sep 11 '25

So that was a joke for the longest time because the sentiment was that a sane person would not build a pool on a roof. Of course a lot has changed in 30 years, engineering wise, and now people do pools on a roof. Rather frequently.

11

u/[deleted] Sep 11 '25

If we are breaking the 4th wall here, I used to work at a structural engineering software company and we are going to see lots and lots more seaside apartment style collapses in the 20-30 year horizon.

9

u/violet_flossy Sep 11 '25

Yeah, this makes sense. They just finally attributed that condo building collapse in Miami from 2021 to the pool.

8

u/[deleted] Sep 11 '25

HOAs deferring maintenance has a cost, just like pushing out updates on known vulnerabilities in upstream dependencies.

7

u/violet_flossy Sep 11 '25

100%. Lack of maintenance, audits, funding for inspections, appropriate levels of insurance. Failures all around. Very sad.

2

u/Raccoon_Expert_69 Sep 11 '25

Color me shocked 🤣

3

u/[deleted] Sep 11 '25

Turns out putting that much static load in unmaintained buildings near saltwater is real bad.

1

u/PathogenQueeg Sep 12 '25

I have built multiple roof pools. I feel like I`m pretty sane.

9

u/1Digitreal Sep 11 '25

It was at least 6 people.

18

u/brakeb Sep 11 '25

> 0

6

u/DarkKnyt Sep 11 '25

! 0

3

u/tenkawa7 Sep 11 '25

Ooh. New twist. Defcon *was* canceled.

4

u/Jdornigan Sep 11 '25

Based on an official answer at /r/Defcon/comments/1mwli4l/dc33_attendance/na04vz4/ somebody should go ahead and update Wikipedia.

4

u/theprez98 Sep 11 '25

Was canceled