Motion prep
Public Forum · social · Intro

Resolved: On balance, the benefits of social media for adolescents outweigh the harms.

An on-balance resolution, so the weighing mechanism is the round. Both sides will have evidence; the winner explains why theirs matters more.

Runs inPublic Forum
DifficultyIntro
SidesPro / Con
Reading the motion
What it asks

Whether net effects of social media on adolescents are positive. "On balance" means neither side has to deny the other's evidence, only to out-weigh it.

Who proves what

Neither side needs to prove an absolute. Pro needs the benefits to be larger or more probable; Con needs the harms to be. Say which weighing mechanism you are using in the first speech.

Ground worth taking

The causation fight is the centre of this resolution. Con has correlational mental-health data; Pro has the confound argument. Whoever handles causation more carefully usually takes the ballot.

Both cases
Pro

For adolescents who are isolated where they live, the platform is the only place the community exists.

01 Connection for marginalised teens
Claim
LGBTQ, disabled, and minority adolescents in unsupportive environments find peers online.
Warrant
Survey work consistently finds these groups report online community as a primary support source, and for many it is the only one available in their physical location.
Impact
The benefit concentrates on the highest-risk population, so the magnitude per affected person is large even if the average effect across all teens is small.
02 The causal evidence is weaker than the headlines
Claim
The link between social-media use and adolescent mental health is correlational and small.
Warrant
Orben and Przybylski's specification-curve analysis found the association comparable in size to effects like wearing glasses. Reverse causation, that struggling teens use more, is unresolved.
Impact
Con's primary harm rests on a contested inference. If the effect size is genuinely that small, it cannot outweigh benefits that are directly reported by users.
03 Access to information and mobilisation
Claim
Teens use platforms for health information, academic help, and political organising.
Warrant
For adolescents who cannot ask an adult about mental health, sexuality, or abuse, search and peer communities are the accessible route.
Impact
This reaches exactly the questions that are hardest to ask offline, and it operates at population scale continuously.
Con

The product is optimised for engagement, and the mechanisms that produce engagement in adolescents are the same ones that produce harm.

01 The timing evidence is hard to explain away
Claim
Adolescent depression, self-harm, and anxiety rose sharply from roughly 2012 across multiple countries.
Warrant
The inflection tracks smartphone and platform adoption, appears in several national datasets, and is concentrated among girls, which matches the appearance-comparison mechanism.
Impact
Even at a modest effect size, applied to essentially every adolescent in a developed country, the aggregate magnitude is enormous.
02 Sleep displacement is the clean causal link
Claim
Night-time use directly reduces sleep duration.
Warrant
This is not correlational: time spent on a device at midnight is time not spent asleep, and adolescent sleep need is well established.
Impact
Sleep deprivation independently causes mood, attention, and metabolic harm. Pro's confound argument does not touch this mechanism at all.
03 Design targets developmental vulnerability
Claim
Variable-reward feeds and social-metric displays exploit exactly the period of peak peer sensitivity.
Warrant
Adolescence is when social comparison has maximum effect on self-concept. Quantifying peer approval and delivering it unpredictably is the specific design choice.
Impact
The harm is not incidental to the product, it is the engagement mechanism, which means it does not get better without regulation.
The clash that decides it

Does the mental-health correlation reflect causation, and does it outweigh benefits that are concentrated on the most vulnerable users?

How Pro wins it
Pro wins by narrowing the causal claim and showing the benefit lands on the population with the highest baseline risk, which is where marginal help matters most.
How Con wins it
Con wins on sleep displacement, because it is the one mechanism with a clean causal path that survives every confound argument Pro has.
Where rounds go wrong
Pro mistakes
  • Denying the mental-health trend. It is real; contest the causation instead.
  • Listing benefits without weighing. On balance means you must compare, not enumerate.
Con mistakes
  • Reading Haidt as settled science. Pro will bring Orben. Have the methodological response ready.
  • Ignoring the marginalised-teen benefit. It is Pro's strongest ground and it needs a direct answer.
Prep something next to it
This House would ban smartphones in schools.
An accessible motion with unusually good evidence on both sides, which makes it a fair test of who researched.
World Schools · Intro
This House would ban political advertising on social media.
A speech-regulation motion where the definition of political advertising decides half the round.
British Parliamentary · Medium
Resolved: The United States should adopt a single-payer universal healthcare system.
A policy resolution in a PF frame. The transition, not the steady state, is where rounds are won.
Public Forum · Medium
This house would ban billionaires.
A wealth-cap motion that turns on whether extreme fortunes are a political problem or an economic signal.
Parliamentary / APDA · Medium