How it works
TheWorldSearch searches the live academic web, reads what it finds, weighs how good the evidence is, and only then decides whether it can answer you at all.
Source tiers
Ivy League universities, R1 research institutions, and their international equivalents like Oxford, Cambridge, ETH Zürich and Max Planck.
Peer-reviewed journals and open academic repositories: PubMed, PubMed Central, arXiv, JSTOR, Nature, Science, The Lancet, BMJ, PLOS, Cochrane, SSRN and other .edu or .ac research.
A short, fixed list of public-interest bodies: WHO, CDC, NIH, NSF, OECD, World Bank, UN agencies, Pew Research, National Academies. These never carry an answer on their own.
The steps
- 01
Reading your question
We turn it into a handful of precise academic queries.
- 02
Searching credible sources
We search the open academic web, leaning hard on Tier A.
- 03
Filtering
Everything is checked against the whitelist. Blogs, news, forums and commercial pages are dropped on sight.
- 04
Reading the research
Pages that qualify get pulled in full and actually read, not skimmed from a snippet.
- 05
Weighing the methods
We look at study type, sample size, relevance and limitations.
- 06
Checking the evidence bar
Four qualifying sources minimum, or we stop and say we don't know.
- 07
Writing the answer
Every claim gets an inline citation back to the source behind it.
The refusal rule
Four qualifying sources is the floor, and Tier C alone never gets you there. If the evidence isn't there, the answer is simply "we don't know", plus a full list of what we found and why everything else got rejected.