Simon Maechling Profile picture
PhD Organic Chemistry | Debunking myths | Science not ideology | Follow for facts! 🧪🧬 🌾 Opinions are my own.
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Sep 1 10 tweets 2 min read
People who call scientists “shills”… are the same ones who trust random influencers with zero credentials
and a discount code in their bio.

Let me explain. 🧵👇1/ A scientist with 20 years in chemistry?
🧪 “Bought by Big Chemical.”

But a podcast bro selling detox tea?
✨ “Finally, someone brave enough to speak the truth.”

Make. It. Make. Sense. 2/
Aug 31 12 tweets 2 min read
Spend 20 years studying a subject.
Go online. Get told you’re wrong by an electric screwdriver salesman…

🧵 Let’s talk about the collapse of trust in expertise: 1/ This isn’t just about bruised egos.
It’s about what happens when we flatten every voice to the same level…and ignore the difference between evidence and opinion. 2/
Aug 29 14 tweets 2 min read
Science doesn’t care about your politics.

But RFK Jr. does.

And he’s turning public health into a battlefield.

Let’s talk about what weaponizing health really means - and why it’s dangerous.

🧵👇 1/ The CDC Director just got fired.

Why?

She refused to sign off on “reckless, unscientific directives.”
Her lawyer says RFK Jr. is using health policy as a political tool.

She’s not the only one speaking up. 2/
Aug 27 11 tweets 2 min read
Let’s start simple: Vaccines do NOT cause autism.

This isn’t up for debate. Decades of research, millions of kids studied worldwide, zero credible evidence of a causal link. Full stop.

Here is how RFK Jr. will try to convince you otherwise: 🧵👇1/ So why are we talking about this again?
Because RFK Jr. knows the “vaccines cause autism” myth is losing steam.

So the playbook shifts:

➡️ Add a new villain.
➡️ Frame it as a U.S.-specific “syndrome.”
➡️ Tie it to something millions of Americans use. 2/
Aug 23 9 tweets 2 min read
Science doesn’t just explain the world. It saves it.

Every bar in this chart?
A breakthrough.
A life extended.
A child spared.
A cure.

Let’s talk about the most important data you’ll see this year.

🧵👇 1/ Image Start with this number:

Over 1 billion lives.

That’s how many people were saved by the discovery of blood groups and blood storage.

Karl Landsteiner and Richard Lewishon didn’t go viral.

They made blood transfusions possible. 2/
Aug 22 8 tweets 2 min read
I just got back from the farmers’ market.
Organic signs everywhere.

Someone told me:
“Choosing organic is the only moral choice.”

I smiled. Because I knew this was going to be fun.
Every aisle, another “moral” contradiction.

Let’s take a walk. 🧵1/ First stall:
Handwritten sign: “Chemical-free vegetables.”
Except… organic farming uses pesticides too.

Often older, less selective ones.
Copper sulfate, anyone?

It’s “natural” - and highly toxic to aquatic life. 2/
Aug 21 15 tweets 3 min read
I went for dinner with a “what-if” guy last night.
You know the type. Smart, curious, intense.

We sat down, ordered wine, and for a while it was normal. Work, travel, you know.

I told him worked in R&D for 20 years.
Then he leaned across the table and asked, dead serious: 1/ “What if glyphosate causes cancer?”

I smiled. Not because it was a silly question - but because I knew what kind of evening this was going to be. Every course, another apocalypse.

So I answered: 2/
Aug 19 10 tweets 2 min read
What if anti-science propaganda isn’t about “freedom” at all...

…but a foreign op to quietly sabotage your health?

Let’s talk about what no one wants to say out loud. 🧵👇1/ Every day, millions of people are told:

🌾 GMOs will kill you.
😨 Don't trust doctors.
💉 Vaccines are poison.
😡 Don’t trust regulators.
🧪 Chemicals are everywhere.

The message is loud. Emotional. Viral.

But ask yourself:
Who benefits? 2/
Aug 15 10 tweets 2 min read
The US just cancelled US$500 million in mRNA research grants.

In 2025.

For a technology that saved millions of lives.

That’s not caution.
That’s cutting off your nose to spite your face. 🧵👇1/ Image mRNA isn’t just a COVID-19 vaccine trick.

It’s a flexible platform that’s being tested for cancer, autoimmune diseases, and inherited conditions like sickle cell.

Shutting down research now? That’s science backwards. 2/
Aug 3 10 tweets 2 min read
Hi, Chemist here 👋

Why do some people think synthetic mRNA is dangerous?

Because they’re told it’s “unnatural,” untested, or secretly rewriting their DNA.

Let’s break that down - with facts.
(Spoiler alert - it's not). 🧵👇 1/ “It’s synthetic!”

Yes. And?

So is paracetamol. So is insulin. So is your Wi-Fi.

Synthetic doesn’t mean dangerous.
It just means designed to work better. 2/
Aug 3 9 tweets 2 min read
Pesticides are among the most misunderstood tools in society today.

Everyone talks about what they are.

Almost no one explains how they’re tested, regulated, and monitored.

Let’s fix that.

A thread on pesticide safety,
and the science behind it: 🧵1/ First: most people think "chemical = dangerous."

But science doesn’t work that way.
Risk ≠ Hazard.

Even water can be lethal at high enough doses.
What matters is how much and how often you're exposed.

That’s the core of toxicology.
It’s called “The dose makes the poison.” 2/
Jul 26 10 tweets 2 min read
For over a decade, anti-GMO activists demanded long-term studies in mammals.

Not mice.
Not rats.
Primates.

Well... scientists did just that.
And the results are in.

Let’s talk about a 7-year feeding study in macaques.
🧵 1/👇 Image Researchers fed two generations of cynomolgus monkeys diets made of ~70% GM maize.

The maize carried:

🌽 cry1Ab and cry2Aj (Bt proteins — insect protection).

🌿 EPSPS (herbicide tolerance — glyphosate resistance).

Control groups ate non-GM or conventional maize. 2/
Jul 25 11 tweets 2 min read
We fear invisible chemicals.

But we ignore the ones we can see. The ones that actually harm us every single day.

Let’s talk about the visible poisons we breathe, burn, and touch… and why no one seems to care. 🧵1/ We panic over “glyphosate traces” in cereal.

Meanwhile, burning wood in your cozy fireplace fills your home with benzene, formaldehyde, and fine particulates that cause cancer.

Nobody panics. We call it “natural warmth.” 2/
Jul 4 12 tweets 2 min read
The idea that everything we touch, breathe, or eat is slowly killing us sounds scary, right?

That’s the point.

I want to explain why this panic is manufactured - and what really matters for your health.👇🧵1/

thefirebreak.org/p/the-exposome… The exposome is the new buzzword for an old idea:
That “chemicals” and “pollution” cause all our modern diseases.

Give it a scientific-sounding name and - boom - suddenly it’s a reason for new funding, new policies, and new fears. 2/
Jul 3 12 tweets 2 min read
Every GMO debate ignores one simple fact:
You've almost never eaten a “natural” food in your life. 👇1/ Image Corn?
Used to be a wild grass with hard kernels smaller than a fingernail.

Humans reprogrammed it over thousands of years.
The result? Modern corn.

A genetically modified organism. No lab needed. 2/
Jul 2 10 tweets 2 min read
What was behind biggest-ever U.S. honey bee die-off?

Hint: It wasn't pesticides.

The U.S. just lost 62% of its commercial honey bee colonies in 7 months.

Here’s what happened - and why it should terrify anyone who eats. 👇1/ Image Bees are more than honey.

They pollinate 90+ crops and drive up to $30 billion in U.S. agriculture.

No bees = no almonds, no apples, no avocados.
This winter, they collapsed.

Researchers finally found the main culprit: 2/
Jun 24 8 tweets 2 min read
A chemical’s name tells you nothing about whether it’s safe or dangerous.

But that doesn’t stop people from freaking out over “scary-sounding” chemicals while trusting “natural” ones without question.

Let’s fix that. 🧵👇 1/ Image Ever heard of dihydrogen monoxide? Sounds dangerous, right?

That’s water. 💧 You drink it every day.

Meanwhile, botulinum toxin is one of the deadliest substances known. It can kill in micrograms. Yet people inject it into their faces as Botox. 2/
Jun 16 7 tweets 1 min read
I work in industry.
That often comes with assumptions:

• That I’m biased.
• That I’m hiding something.
• Or that I’ve been “bought.”

Let’s set the record straight. 1/ Industry scientists are among the most rigorous and evidence-driven professionals in the field.

What do we do?

• Develop life-saving medicines.
• Build sustainable agricultural tools.
• Design safer, smarter materials for global use. 2/
Jun 12 8 tweets 1 min read
Glyphosate is not just a herbicide.

It's a totem.
It’s a symbol.
It's a scapegoat.

And that’s exactly why it’s under attack. 🧵1/ Not because the science is unclear - it isn’t.
Not because safer alternatives exist - they don’t.
Not because it’s the most dangerous chemical - it isn’t.
2/
Jun 2 13 tweets 2 min read
Most people think medicine has saved the most lives.

But what if I told you that title belongs to something else?

Something…unexpected, and why we risk losing the next one 1/13 Image We’re 8 billion people today.
That was once unthinkable.

Yet despite wars, pandemics, and climate shocks, famine is rarer than ever.

The reason?
Modern agriculture.

Yes, really. 2/13
May 20 9 tweets 2 min read
Life expectancy used to be 35.
Half of all children died before age 5.

A scratch could kill you.
Hunger was normal.

Then came modern agriculture, food science, and medicine.

They didn’t ruin the world.
They saved it.
Here's how:🧵 1/ Romanticizing the past is easy.
Until you look at the numbers.

In 1800:

43% of children died before age 5.
Average lifespan was around 30-40.

Famine struck entire countries.
Infectious disease was everywhere.

“Natural” wasn’t beautiful. It was brutal. 2/