Usa tu voz | Lizette Weber | TEDxToluca

Usa tu voz | Lizette Weber | TEDxToluca

Use Your Voice | Lizette Weber | TEDxToluca

Title history
  • Usa tu voz | Lizette Weber | TEDxToluca — observed on 20261029-0052 UTC (YouTube)

by Lizette Weber · View the channel on PSI

Humanities, Social Sciences & Thought Language & Linguistics CBLanguage: reference and generalCBPSpeaking in public: advice and guides
🎙 Lizette Weber 👥 44.7M 📅 October 28, 2026 ⏱ 18 min 👁 20 📄 science communication 🧭 2026-10-29
Available in: English (current) Français

Keywords

public speakingvoiceconfidenceanxietycommunication

Summary

In this TEDx talk, Lizette Weber shares her personal journey and professional insights on public speaking. She begins with the emotional story of her mother’s loss of speech due to illness, emphasizing the importance of using one’s voice. She defines public speaking as any situation with an audience, not just stage presentations. She cites that over 75% of the world population suffers from glossophobia (fear of public speaking), highlighting its prevalence. Weber offers practical advice to build confidence, such as improving internal dialogue, avoiding comparisons, not waiting to be perfectly ready, celebrating achievements, practicing, and preparing thoroughly. She introduces the ACE rule for parachutists as an analogy for speech preparation. Regarding nervousness, she explains that it cannot be eliminated but can be controlled, using breathing techniques and citing neuropsychologist Russell Kennedy. She encourages vulnerability and focuses on the audience, referencing Brené Brown. She also mentions Aristotle’s three pillars of persuasion: credibility, logic, and emotion. The talk concludes with an appeal to use one’s voice for good, in honor of those who cannot speak.

173 words

Critical Evaluation

Value of the Information & Strength of the Argument

The talk provides accessible and actionable tips for improving public speaking skills, such as breathing exercises and mindset shifts. However, the argumentation is mainly anecdotal and relies on broad references to experts (Harvard, Aristotle) without presenting specific studies or data. The personal story adds emotional value but does not replace rigorous evidence. The advice is generally sound and may be useful to beginners, but lacks depth for experienced speakers.

Scientific Rigor, Source Quality, Title Accuracy

The talk mentions sources like Harvard (85% success from soft skills), Brené Brown, Russell Kennedy, and Cristina Stuart, but provides no direct links or detailed references. The only provided link is to TEDx general page. The title accurately matches the content, which is about using your voice in public speaking. The overall scientific rigor is limited; it’s more of an inspirational speech than an evidence-based analysis.

150 words

Title / Content Match

The title accurately reflects the core message of the talk, which is about using one's voice in public speaking.

Quality & Reliability

6/10

The talk combines personal experience with references to well-known figures (Harvard, Brené Brown, Russell Kennedy) but lacks precise citations or scientific evidence. The practical advice is sound but presented in a popular, non-rigorous manner.

Key Moments

Markers derived by PSI from the transcript: the creator did not define chapters.

Cited Sources

  • TEDx official page — The talk was given at a TEDx event and follows the TED conference format.

Contribution & Novelties

The talk’s originality lies in blending personal narrative with practical speech-writing tips, making it relatable. It emphasizes the importance of voice in a world increasingly dominated by AI, as AI cannot replace human speaking. The ‘Pour aller plus loin’ section includes concepts like glossophobia (Wikipedia), the 4-7-8 breathing technique (often used for anxiety), and Aristotle’s rhetoric. Suggested sources: Glossophobia - despite its prevalence, it’s a specific phobia; Brené Brown on Vulnerability - relevant to the talk’s discussion; Emotional Intelligence - related to soft skills.

84 words

Radar Profile

The radar shows a moderately balanced profile with slightly stronger scores in information quality and reliability, but lower in technical level and quantity, indicating a general-audience talk with practical but not deeply technical content.

Reliability 6/10