Question 1

What is thessea?

Accepted Answer

thessea is a daily reasoning trainer that helps you practice critical thinking on real articles and other authentic text. Sessions are short, scored exercises with structured feedback so you can see what to improve.

Question 2

How is thessea different from casual brain games?

Accepted Answer

Many brain games emphasize speed and pattern matching on abstract puzzles. thessea focuses on reasoning with realistic material - following claims, weighing evidence, and explaining your logic - closer to how you read at work or school.

Question 3

What is CER feedback?

Accepted Answer

CER stands for Claim-Evidence-Reasoning. After you answer, feedback is organized around what was claimed, what evidence supports it, and how the reasoning connects the two - not only whether the option you picked matched a key.

Question 4

How long does a typical session take?

Accepted Answer

Most people finish a daily-style session in about 5-10 minutes, depending on the exercise. You can leave and return when it fits your day.

Question 5

Is thessea free?

Accepted Answer

Yes - the app is free during our closed beta. When we launch more broadly, core features will remain free; we may introduce optional paid tiers for power users or teams, and we will be transparent about what is included before anything changes.

Question 6

What skills does thessea track?

Accepted Answer

Progress is organized into reasoning dimensions such as causal reasoning, argument analysis, spotting assumptions, evidence evaluation, claim calibration, and reading comprehension. The exact labels in the product may evolve as we improve the model.

Question 7

What if I miss a day?

Accepted Answer

There is no penalty for skipping. Content you have access to remains available so you can continue at your own pace.

Question 8

Can I use thessea on my phone?

Accepted Answer

Yes. thessea runs in a modern mobile browser; installable native apps are not required for core use.

Frequently asked questions