When researching a question, what makes one source more trustworthy than another, and what is a "filter bubble"?
Weigh each source on reliability, age and informativeness — and consciously break out of the filter bubble that only shows you views you already hold.
* Let feeds personalise passively and you get a confirming bubble; actively seek opposing sources for a fuller picture. *
Not all sources are equal. Three quick dimensions to grade one by:
| Dimension | The question to ask |
|---|---|
| Reliability | Who produced this, and do they have a track record / reason to be accurate? |
| Age | Is it current enough for the claim, or has the field moved on? |
| Informativeness | Does it actually answer the question, or just touch the topic? |
A filter bubble (or echo chamber) is what you get when search engines, social feeds and your own habits keep serving you sources that confirm what you already believe. It feels like consensus but is really self-selection. The countermeasure is deliberate: seek out diverse and opposing sources, not just more of the same.
Tip: If every source you found agrees with you, that's a warning sign you're inside a bubble — not proof that you're right.
Go deeper:
Wikipedia — Filter bubble — how personalised algorithms narrow what you see, the research on their effects, and how to counter them.